Home / 39,162.90-54,045.08-21,257.91

Finding the Fourth Proportional to 39,162.90, 54,045.08 and 21,257.91

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Solution

The fourth proportional to 39,162.90, 54,045.08 and 21,257.91 is: 29,336.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,162.90 : 54,045.08 = 21,257.91 : x
  2. Step 2: Convert to fraction form
    39,162.90/54,045.08 = 21,257.91/x
  3. Step 3: Cross multiply
    39,162.90x = 54,045.08 × 21,257.91
  4. Step 4: Simplify right side
    39,162.90x = 1,148,885,340.29
  5. Step 5: Solve for x
    x = 1,148,885,340.29/39,162.90
  6. Step 6: Final answer
    x = 29,336.06

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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.