Home / 42,002.24-63,012.40-20,953.60

Finding the Fourth Proportional to 42,002.24, 63,012.40 and 20,953.60

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Solution

The fourth proportional to 42,002.24, 63,012.40 and 20,953.60 is: 31,434.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,002.24 : 63,012.40 = 20,953.60 : x
  2. Step 2: Convert to fraction form
    42,002.24/63,012.40 = 20,953.60/x
  3. Step 3: Cross multiply
    42,002.24x = 63,012.40 × 20,953.60
  4. Step 4: Simplify right side
    42,002.24x = 1,320,336,624.64
  5. Step 5: Solve for x
    x = 1,320,336,624.64/42,002.24
  6. Step 6: Final answer
    x = 31,434.91

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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.