Home / 28,507.98-39,340.95-15,932.73

Finding the Fourth Proportional to 28,507.98, 39,340.95 and 15,932.73

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Solution

The fourth proportional to 28,507.98, 39,340.95 and 15,932.73 is: 21,987.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,507.98 : 39,340.95 = 15,932.73 : x
  2. Step 2: Convert to fraction form
    28,507.98/39,340.95 = 15,932.73/x
  3. Step 3: Cross multiply
    28,507.98x = 39,340.95 × 15,932.73
  4. Step 4: Simplify right side
    28,507.98x = 626,808,734.29
  5. Step 5: Solve for x
    x = 626,808,734.29/28,507.98
  6. Step 6: Final answer
    x = 21,987.13

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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.