Home / 39,580.80-59,371.20-9,998.72

Finding the Fourth Proportional to 39,580.80, 59,371.20 and 9,998.72

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Solution

The fourth proportional to 39,580.80, 59,371.20 and 9,998.72 is: 14,998.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,580.80 : 59,371.20 = 9,998.72 : x
  2. Step 2: Convert to fraction form
    39,580.80/59,371.20 = 9,998.72/x
  3. Step 3: Cross multiply
    39,580.80x = 59,371.20 × 9,998.72
  4. Step 4: Simplify right side
    39,580.80x = 593,636,004.86
  5. Step 5: Solve for x
    x = 593,636,004.86/39,580.80
  6. Step 6: Final answer
    x = 14,998.08

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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.