Home / 38,807.76-58,216.56-12,511.92

Finding the Fourth Proportional to 38,807.76, 58,216.56 and 12,511.92

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Solution

The fourth proportional to 38,807.76, 58,216.56 and 12,511.92 is: 18,769.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,807.76 : 58,216.56 = 12,511.92 : x
  2. Step 2: Convert to fraction form
    38,807.76/58,216.56 = 12,511.92/x
  3. Step 3: Cross multiply
    38,807.76x = 58,216.56 × 12,511.92
  4. Step 4: Simplify right side
    38,807.76x = 728,400,941.40
  5. Step 5: Solve for x
    x = 728,400,941.40/38,807.76
  6. Step 6: Final answer
    x = 18,769.47

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1.5x scale

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.