Home / 28,699.35-39,602.82-15,951.53

Finding the Fourth Proportional to 28,699.35, 39,602.82 and 15,951.53

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Solution

The fourth proportional to 28,699.35, 39,602.82 and 15,951.53 is: 22,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.35 : 39,602.82 = 15,951.53 : x
  2. Step 2: Convert to fraction form
    28,699.35/39,602.82 = 15,951.53/x
  3. Step 3: Cross multiply
    28,699.35x = 39,602.82 × 15,951.53
  4. Step 4: Simplify right side
    28,699.35x = 631,725,730.14
  5. Step 5: Solve for x
    x = 631,725,730.14/28,699.35
  6. Step 6: Final answer
    x = 22,011.85

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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.