Home / 38,779.61-58,174.88-13,812.27

Finding the Fourth Proportional to 38,779.61, 58,174.88 and 13,812.27

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Solution

The fourth proportional to 38,779.61, 58,174.88 and 13,812.27 is: 20,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,779.61 : 58,174.88 = 13,812.27 : x
  2. Step 2: Convert to fraction form
    38,779.61/58,174.88 = 13,812.27/x
  3. Step 3: Cross multiply
    38,779.61x = 58,174.88 × 13,812.27
  4. Step 4: Simplify right side
    38,779.61x = 803,527,189.79
  5. Step 5: Solve for x
    x = 803,527,189.79/38,779.61
  6. Step 6: Final answer
    x = 20,720.35

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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.