Home / 28,207.18-38,925.93-15,631.93

Finding the Fourth Proportional to 28,207.18, 38,925.93 and 15,631.93

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Solution

The fourth proportional to 28,207.18, 38,925.93 and 15,631.93 is: 21,572.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.18 : 38,925.93 = 15,631.93 : x
  2. Step 2: Convert to fraction form
    28,207.18/38,925.93 = 15,631.93/x
  3. Step 3: Cross multiply
    28,207.18x = 38,925.93 × 15,631.93
  4. Step 4: Simplify right side
    28,207.18x = 608,487,412.94
  5. Step 5: Solve for x
    x = 608,487,412.94/28,207.18
  6. Step 6: Final answer
    x = 21,572.08

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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.