Home / 38,071.48-57,111.90-11,778.76

Finding the Fourth Proportional to 38,071.48, 57,111.90 and 11,778.76

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Solution

The fourth proportional to 38,071.48, 57,111.90 and 11,778.76 is: 17,669.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,071.48 : 57,111.90 = 11,778.76 : x
  2. Step 2: Convert to fraction form
    38,071.48/57,111.90 = 11,778.76/x
  3. Step 3: Cross multiply
    38,071.48x = 57,111.90 × 11,778.76
  4. Step 4: Simplify right side
    38,071.48x = 672,707,363.24
  5. Step 5: Solve for x
    x = 672,707,363.24/38,071.48
  6. Step 6: Final answer
    x = 17,669.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.