Home / 40,535.70-60,779.29-13,872.80

Finding the Fourth Proportional to 40,535.70, 60,779.29 and 13,872.80

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Solution

The fourth proportional to 40,535.70, 60,779.29 and 13,872.80 is: 20,800.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,535.70 : 60,779.29 = 13,872.80 : x
  2. Step 2: Convert to fraction form
    40,535.70/60,779.29 = 13,872.80/x
  3. Step 3: Cross multiply
    40,535.70x = 60,779.29 × 13,872.80
  4. Step 4: Simplify right side
    40,535.70x = 843,178,902.00
  5. Step 5: Solve for x
    x = 843,178,902.00/40,535.70
  6. Step 6: Final answer
    x = 20,800.89

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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.