Home / 47,511.28-71,254.77-17,920.36

Finding the Fourth Proportional to 47,511.28, 71,254.77 and 17,920.36

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Solution

The fourth proportional to 47,511.28, 71,254.77 and 17,920.36 is: 26,875.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,511.28 : 71,254.77 = 17,920.36 : x
  2. Step 2: Convert to fraction form
    47,511.28/71,254.77 = 17,920.36/x
  3. Step 3: Cross multiply
    47,511.28x = 71,254.77 × 17,920.36
  4. Step 4: Simplify right side
    47,511.28x = 1,276,911,130.12
  5. Step 5: Solve for x
    x = 1,276,911,130.12/47,511.28
  6. Step 6: Final answer
    x = 26,875.96

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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.