Home / 39,910.16-59,869.56-12,210.32

Finding the Fourth Proportional to 39,910.16, 59,869.56 and 12,210.32

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Solution

The fourth proportional to 39,910.16, 59,869.56 and 12,210.32 is: 18,316.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,910.16 : 59,869.56 = 12,210.32 : x
  2. Step 2: Convert to fraction form
    39,910.16/59,869.56 = 12,210.32/x
  3. Step 3: Cross multiply
    39,910.16x = 59,869.56 × 12,210.32
  4. Step 4: Simplify right side
    39,910.16x = 731,026,485.86
  5. Step 5: Solve for x
    x = 731,026,485.86/39,910.16
  6. Step 6: Final answer
    x = 18,316.80

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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.