Home / 28,344.91-42,452.56-13,564.21

Finding the Fourth Proportional to 28,344.91, 42,452.56 and 13,564.21

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Solution

The fourth proportional to 28,344.91, 42,452.56 and 13,564.21 is: 20,315.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.91 : 42,452.56 = 13,564.21 : x
  2. Step 2: Convert to fraction form
    28,344.91/42,452.56 = 13,564.21/x
  3. Step 3: Cross multiply
    28,344.91x = 42,452.56 × 13,564.21
  4. Step 4: Simplify right side
    28,344.91x = 575,835,349.70
  5. Step 5: Solve for x
    x = 575,835,349.70/28,344.91
  6. Step 6: Final answer
    x = 20,315.30

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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.