Home / 28,207.31-38,926.55-15,461.71

Finding the Fourth Proportional to 28,207.31, 38,926.55 and 15,461.71

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Solution

The fourth proportional to 28,207.31, 38,926.55 and 15,461.71 is: 21,337.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,207.31 : 38,926.55 = 15,461.71 : x
  2. Step 2: Convert to fraction form
    28,207.31/38,926.55 = 15,461.71/x
  3. Step 3: Cross multiply
    28,207.31x = 38,926.55 × 15,461.71
  4. Step 4: Simplify right side
    28,207.31x = 601,870,968.74
  5. Step 5: Solve for x
    x = 601,870,968.74/28,207.31
  6. Step 6: Final answer
    x = 21,337.41

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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.