Home / 28,248.80-38,983.23-15,502.19

Finding the Fourth Proportional to 28,248.80, 38,983.23 and 15,502.19

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Solution

The fourth proportional to 28,248.80, 38,983.23 and 15,502.19 is: 21,392.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,248.80 : 38,983.23 = 15,502.19 : x
  2. Step 2: Convert to fraction form
    28,248.80/38,983.23 = 15,502.19/x
  3. Step 3: Cross multiply
    28,248.80x = 38,983.23 × 15,502.19
  4. Step 4: Simplify right side
    28,248.80x = 604,325,535.73
  5. Step 5: Solve for x
    x = 604,325,535.73/28,248.80
  6. Step 6: Final answer
    x = 21,392.97

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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.