Home / 42,005.68-63,008.64-28,818.08

Finding the Fourth Proportional to 42,005.68, 63,008.64 and 28,818.08

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Solution

The fourth proportional to 42,005.68, 63,008.64 and 28,818.08 is: 43,227.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,005.68 : 63,008.64 = 28,818.08 : x
  2. Step 2: Convert to fraction form
    42,005.68/63,008.64 = 28,818.08/x
  3. Step 3: Cross multiply
    42,005.68x = 63,008.64 × 28,818.08
  4. Step 4: Simplify right side
    42,005.68x = 1,815,788,028.21
  5. Step 5: Solve for x
    x = 1,815,788,028.21/42,005.68
  6. Step 6: Final answer
    x = 43,227.20

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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.