Home / 28,423.24-42,645.92-11,779.03

Finding the Fourth Proportional to 28,423.24, 42,645.92 and 11,779.03

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Solution

The fourth proportional to 28,423.24, 42,645.92 and 11,779.03 is: 17,673.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,423.24 : 42,645.92 = 11,779.03 : x
  2. Step 2: Convert to fraction form
    28,423.24/42,645.92 = 11,779.03/x
  3. Step 3: Cross multiply
    28,423.24x = 42,645.92 × 11,779.03
  4. Step 4: Simplify right side
    28,423.24x = 502,327,565.47
  5. Step 5: Solve for x
    x = 502,327,565.47/28,423.24
  6. Step 6: Final answer
    x = 17,673.13

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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.