Home / 39,640.86-59,461.29-11,938.86

Finding the Fourth Proportional to 39,640.86, 59,461.29 and 11,938.86

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Solution

The fourth proportional to 39,640.86, 59,461.29 and 11,938.86 is: 17,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,640.86 : 59,461.29 = 11,938.86 : x
  2. Step 2: Convert to fraction form
    39,640.86/59,461.29 = 11,938.86/x
  3. Step 3: Cross multiply
    39,640.86x = 59,461.29 × 11,938.86
  4. Step 4: Simplify right side
    39,640.86x = 709,900,016.73
  5. Step 5: Solve for x
    x = 709,900,016.73/39,640.86
  6. Step 6: Final answer
    x = 17,908.29

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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.