Home / 23,191.85-34,721.55-21,720.53

Finding the Fourth Proportional to 23,191.85, 34,721.55 and 21,720.53

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Solution

The fourth proportional to 23,191.85, 34,721.55 and 21,720.53 is: 32,518.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,191.85 : 34,721.55 = 21,720.53 : x
  2. Step 2: Convert to fraction form
    23,191.85/34,721.55 = 21,720.53/x
  3. Step 3: Cross multiply
    23,191.85x = 34,721.55 × 21,720.53
  4. Step 4: Simplify right side
    23,191.85x = 754,170,294.81
  5. Step 5: Solve for x
    x = 754,170,294.81/23,191.85
  6. Step 6: Final answer
    x = 32,518.77

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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.