Home / 42,558.52-63,810.36-20,371.36

Finding the Fourth Proportional to 42,558.52, 63,810.36 and 20,371.36

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Solution

The fourth proportional to 42,558.52, 63,810.36 and 20,371.36 is: 30,543.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,558.52 : 63,810.36 = 20,371.36 : x
  2. Step 2: Convert to fraction form
    42,558.52/63,810.36 = 20,371.36/x
  3. Step 3: Cross multiply
    42,558.52x = 63,810.36 × 20,371.36
  4. Step 4: Simplify right side
    42,558.52x = 1,299,903,815.29
  5. Step 5: Solve for x
    x = 1,299,903,815.29/42,558.52
  6. Step 6: Final answer
    x = 30,543.91

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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.