Home / 47,616.12-71,424.18-12,558.51

Finding the Fourth Proportional to 47,616.12, 71,424.18 and 12,558.51

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Solution

The fourth proportional to 47,616.12, 71,424.18 and 12,558.51 is: 18,837.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,616.12 : 71,424.18 = 12,558.51 : x
  2. Step 2: Convert to fraction form
    47,616.12/71,424.18 = 12,558.51/x
  3. Step 3: Cross multiply
    47,616.12x = 71,424.18 × 12,558.51
  4. Step 4: Simplify right side
    47,616.12x = 896,981,278.77
  5. Step 5: Solve for x
    x = 896,981,278.77/47,616.12
  6. Step 6: Final answer
    x = 18,837.77

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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.