Home / 28,011.10-38,654.82-15,264.38

Finding the Fourth Proportional to 28,011.10, 38,654.82 and 15,264.38

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Solution

The fourth proportional to 28,011.10, 38,654.82 and 15,264.38 is: 21,064.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,011.10 : 38,654.82 = 15,264.38 : x
  2. Step 2: Convert to fraction form
    28,011.10/38,654.82 = 15,264.38/x
  3. Step 3: Cross multiply
    28,011.10x = 38,654.82 × 15,264.38
  4. Step 4: Simplify right side
    28,011.10x = 590,041,957.95
  5. Step 5: Solve for x
    x = 590,041,957.95/28,011.10
  6. Step 6: Final answer
    x = 21,064.58

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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.