Home / 21,415.60-32,123.40-11,574.10

Finding the Fourth Proportional to 21,415.60, 32,123.40 and 11,574.10

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Solution

The fourth proportional to 21,415.60, 32,123.40 and 11,574.10 is: 17,361.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,415.60 : 32,123.40 = 11,574.10 : x
  2. Step 2: Convert to fraction form
    21,415.60/32,123.40 = 11,574.10/x
  3. Step 3: Cross multiply
    21,415.60x = 32,123.40 × 11,574.10
  4. Step 4: Simplify right side
    21,415.60x = 371,799,443.94
  5. Step 5: Solve for x
    x = 371,799,443.94/21,415.60
  6. Step 6: Final answer
    x = 17,361.15

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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.