Home / 38,779.76-58,167.32-13,818.48

Finding the Fourth Proportional to 38,779.76, 58,167.32 and 13,818.48

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Solution

The fourth proportional to 38,779.76, 58,167.32 and 13,818.48 is: 20,726.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779.76 : 58,167.32 = 13,818.48 : x
  2. Step 2: Convert to fraction form
    38,779.76/58,167.32 = 13,818.48/x
  3. Step 3: Cross multiply
    38,779.76x = 58,167.32 × 13,818.48
  4. Step 4: Simplify right side
    38,779.76x = 803,783,948.07
  5. Step 5: Solve for x
    x = 803,783,948.07/38,779.76
  6. Step 6: Final answer
    x = 20,726.89

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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.