Home / 42,254.40-63,384.90-18,883.20

Finding the Fourth Proportional to 42,254.40, 63,384.90 and 18,883.20

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Solution

The fourth proportional to 42,254.40, 63,384.90 and 18,883.20 is: 28,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,254.40 : 63,384.90 = 18,883.20 : x
  2. Step 2: Convert to fraction form
    42,254.40/63,384.90 = 18,883.20/x
  3. Step 3: Cross multiply
    42,254.40x = 63,384.90 × 18,883.20
  4. Step 4: Simplify right side
    42,254.40x = 1,196,909,743.68
  5. Step 5: Solve for x
    x = 1,196,909,743.68/42,254.40
  6. Step 6: Final answer
    x = 28,326.27

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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.