Home / 28,307.46-39,064.50-15,560.88

Finding the Fourth Proportional to 28,307.46, 39,064.50 and 15,560.88

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Solution

The fourth proportional to 28,307.46, 39,064.50 and 15,560.88 is: 21,474.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.46 : 39,064.50 = 15,560.88 : x
  2. Step 2: Convert to fraction form
    28,307.46/39,064.50 = 15,560.88/x
  3. Step 3: Cross multiply
    28,307.46x = 39,064.50 × 15,560.88
  4. Step 4: Simplify right side
    28,307.46x = 607,877,996.76
  5. Step 5: Solve for x
    x = 607,877,996.76/28,307.46
  6. Step 6: Final answer
    x = 21,474.13

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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.