Home / 47,502.45-65,543.18-28,639.17

Finding the Fourth Proportional to 47,502.45, 65,543.18 and 28,639.17

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Solution

The fourth proportional to 47,502.45, 65,543.18 and 28,639.17 is: 39,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,502.45 : 65,543.18 = 28,639.17 : x
  2. Step 2: Convert to fraction form
    47,502.45/65,543.18 = 28,639.17/x
  3. Step 3: Cross multiply
    47,502.45x = 65,543.18 × 28,639.17
  4. Step 4: Simplify right side
    47,502.45x = 1,877,102,131.16
  5. Step 5: Solve for x
    x = 1,877,102,131.16/47,502.45
  6. Step 6: Final answer
    x = 39,515.90

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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.