Home / 28,708.06-39,615.15-16,134.70

Finding the Fourth Proportional to 28,708.06, 39,615.15 and 16,134.70

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Solution

The fourth proportional to 28,708.06, 39,615.15 and 16,134.70 is: 22,264.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,708.06 : 39,615.15 = 16,134.70 : x
  2. Step 2: Convert to fraction form
    28,708.06/39,615.15 = 16,134.70/x
  3. Step 3: Cross multiply
    28,708.06x = 39,615.15 × 16,134.70
  4. Step 4: Simplify right side
    28,708.06x = 639,178,560.71
  5. Step 5: Solve for x
    x = 639,178,560.71/28,708.06
  6. Step 6: Final answer
    x = 22,264.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.