Home / 42,247.48-63,345.58-21,163

Finding the Fourth Proportional to 42,247.48, 63,345.58 and 21,163

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Solution

The fourth proportional to 42,247.48, 63,345.58 and 21,163 is: 31,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,247.48 : 63,345.58 = 21,163 : x
  2. Step 2: Convert to fraction form
    42,247.48/63,345.58 = 21,163/x
  3. Step 3: Cross multiply
    42,247.48x = 63,345.58 × 21,163
  4. Step 4: Simplify right side
    42,247.48x = 1,340,582,509.54
  5. Step 5: Solve for x
    x = 1,340,582,509.54/42,247.48
  6. Step 6: Final answer
    x = 31,731.66

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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.