Home / 20,475.04-28,258.28-15,184.96

Finding the Fourth Proportional to 20,475.04, 28,258.28 and 15,184.96

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Solution

The fourth proportional to 20,475.04, 28,258.28 and 15,184.96 is: 20,957.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.04 : 28,258.28 = 15,184.96 : x
  2. Step 2: Convert to fraction form
    20,475.04/28,258.28 = 15,184.96/x
  3. Step 3: Cross multiply
    20,475.04x = 28,258.28 × 15,184.96
  4. Step 4: Simplify right side
    20,475.04x = 429,100,851.47
  5. Step 5: Solve for x
    x = 429,100,851.47/20,475.04
  6. Step 6: Final answer
    x = 20,957.27

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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.