Home / 42,022.64-63,040.44-12,445.04

Finding the Fourth Proportional to 42,022.64, 63,040.44 and 12,445.04

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Solution

The fourth proportional to 42,022.64, 63,040.44 and 12,445.04 is: 18,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,022.64 : 63,040.44 = 12,445.04 : x
  2. Step 2: Convert to fraction form
    42,022.64/63,040.44 = 12,445.04/x
  3. Step 3: Cross multiply
    42,022.64x = 63,040.44 × 12,445.04
  4. Step 4: Simplify right side
    42,022.64x = 784,540,797.42
  5. Step 5: Solve for x
    x = 784,540,797.42/42,022.64
  6. Step 6: Final answer
    x = 18,669.48

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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.