Home / 38,520.84-57,779.64-13,560.96

Finding the Fourth Proportional to 38,520.84, 57,779.64 and 13,560.96

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Solution

The fourth proportional to 38,520.84, 57,779.64 and 13,560.96 is: 20,340.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,520.84 : 57,779.64 = 13,560.96 : x
  2. Step 2: Convert to fraction form
    38,520.84/57,779.64 = 13,560.96/x
  3. Step 3: Cross multiply
    38,520.84x = 57,779.64 × 13,560.96
  4. Step 4: Simplify right side
    38,520.84x = 783,547,386.85
  5. Step 5: Solve for x
    x = 783,547,386.85/38,520.84
  6. Step 6: Final answer
    x = 20,340.87

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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.