Home / 39,770.64-59,651.47-10,188.70

Finding the Fourth Proportional to 39,770.64, 59,651.47 and 10,188.70

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Solution

The fourth proportional to 39,770.64, 59,651.47 and 10,188.70 is: 15,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,770.64 : 59,651.47 = 10,188.70 : x
  2. Step 2: Convert to fraction form
    39,770.64/59,651.47 = 10,188.70/x
  3. Step 3: Cross multiply
    39,770.64x = 59,651.47 × 10,188.70
  4. Step 4: Simplify right side
    39,770.64x = 607,770,932.39
  5. Step 5: Solve for x
    x = 607,770,932.39/39,770.64
  6. Step 6: Final answer
    x = 15,281.90

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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.