Home / 28,581.48-42,792.99-21,540.18

Finding the Fourth Proportional to 28,581.48, 42,792.99 and 21,540.18

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Solution

The fourth proportional to 28,581.48, 42,792.99 and 21,540.18 is: 32,250.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.48 : 42,792.99 = 21,540.18 : x
  2. Step 2: Convert to fraction form
    28,581.48/42,792.99 = 21,540.18/x
  3. Step 3: Cross multiply
    28,581.48x = 42,792.99 × 21,540.18
  4. Step 4: Simplify right side
    28,581.48x = 921,768,707.34
  5. Step 5: Solve for x
    x = 921,768,707.34/28,581.48
  6. Step 6: Final answer
    x = 32,250.56

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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.