Home / 21,062,709.60-31,594,064.40-17,661,487.20

Finding the Fourth Proportional to 21,062,709.60, 31,594,064.40 and 17,661,487.20

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Solution

The fourth proportional to 21,062,709.60, 31,594,064.40 and 17,661,487.20 is: 26,492,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062,709.60 : 31,594,064.40 = 17,661,487.20 : x
  2. Step 2: Convert to fraction form
    21,062,709.60/31,594,064.40 = 17,661,487.20/x
  3. Step 3: Cross multiply
    21,062,709.60x = 31,594,064.40 × 17,661,487.20
  4. Step 4: Simplify right side
    21,062,709.60x = 557,998,163,996,575.62
  5. Step 5: Solve for x
    x = 557,998,163,996,575.62/21,062,709.60
  6. Step 6: Final answer
    x = 26,492,230.80

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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.