Home / 39,666.40-59,489.92-11,578.88

Finding the Fourth Proportional to 39,666.40, 59,489.92 and 11,578.88

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Solution

The fourth proportional to 39,666.40, 59,489.92 and 11,578.88 is: 17,365.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.40 : 59,489.92 = 11,578.88 : x
  2. Step 2: Convert to fraction form
    39,666.40/59,489.92 = 11,578.88/x
  3. Step 3: Cross multiply
    39,666.40x = 59,489.92 × 11,578.88
  4. Step 4: Simplify right side
    39,666.40x = 688,826,644.89
  5. Step 5: Solve for x
    x = 688,826,644.89/39,666.40
  6. Step 6: Final answer
    x = 17,365.49

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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.