Home / 22,528.64-31,080-15,079.04

Finding the Fourth Proportional to 22,528.64, 31,080 and 15,079.04

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Solution

The fourth proportional to 22,528.64, 31,080 and 15,079.04 is: 20,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,528.64 : 31,080 = 15,079.04 : x
  2. Step 2: Convert to fraction form
    22,528.64/31,080 = 15,079.04/x
  3. Step 3: Cross multiply
    22,528.64x = 31,080 × 15,079.04
  4. Step 4: Simplify right side
    22,528.64x = 468,656,563.20
  5. Step 5: Solve for x
    x = 468,656,563.20/22,528.64
  6. Step 6: Final answer
    x = 20,802.70

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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.