Home / 20,522.01-28,288.00-15,127.16

Finding the Fourth Proportional to 20,522.01, 28,288.00 and 15,127.16

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Solution

The fourth proportional to 20,522.01, 28,288.00 and 15,127.16 is: 20,851.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,522.01 : 28,288.00 = 15,127.16 : x
  2. Step 2: Convert to fraction form
    20,522.01/28,288.00 = 15,127.16/x
  3. Step 3: Cross multiply
    20,522.01x = 28,288.00 × 15,127.16
  4. Step 4: Simplify right side
    20,522.01x = 427,917,035.07
  5. Step 5: Solve for x
    x = 427,917,035.07/20,522.01
  6. Step 6: Final answer
    x = 20,851.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.