Home / 28,207.98-38,926.35-15,632.46

Finding the Fourth Proportional to 28,207.98, 38,926.35 and 15,632.46

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Solution

The fourth proportional to 28,207.98, 38,926.35 and 15,632.46 is: 21,572.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.98 : 38,926.35 = 15,632.46 : x
  2. Step 2: Convert to fraction form
    28,207.98/38,926.35 = 15,632.46/x
  3. Step 3: Cross multiply
    28,207.98x = 38,926.35 × 15,632.46
  4. Step 4: Simplify right side
    28,207.98x = 608,514,609.32
  5. Step 5: Solve for x
    x = 608,514,609.32/28,207.98
  6. Step 6: Final answer
    x = 21,572.43

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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.