Home / 21,062,807.40-31,594,211.10-17,236,432.20

Finding the Fourth Proportional to 21,062,807.40, 31,594,211.10 and 17,236,432.20

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Solution

The fourth proportional to 21,062,807.40, 31,594,211.10 and 17,236,432.20 is: 25,854,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,807.40 : 31,594,211.10 = 17,236,432.20 : x
  2. Step 2: Convert to fraction form
    21,062,807.40/31,594,211.10 = 17,236,432.20/x
  3. Step 3: Cross multiply
    21,062,807.40x = 31,594,211.10 × 17,236,432.20
  4. Step 4: Simplify right side
    21,062,807.40x = 544,571,477,537,637.44
  5. Step 5: Solve for x
    x = 544,571,477,537,637.44/21,062,807.40
  6. Step 6: Final answer
    x = 25,854,648.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.