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Finding the Fourth Proportional to 39,669, 59,503.72 and 10,086.86

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Solution

The fourth proportional to 39,669, 59,503.72 and 10,086.86 is: 15,130.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,669 : 59,503.72 = 10,086.86 : x
  2. Step 2: Convert to fraction form
    39,669/59,503.72 = 10,086.86/x
  3. Step 3: Cross multiply
    39,669x = 59,503.72 × 10,086.86
  4. Step 4: Simplify right side
    39,669x = 600,205,395.60
  5. Step 5: Solve for x
    x = 600,205,395.60/39,669
  6. Step 6: Final answer
    x = 15,130.34

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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.