Home / 31,550.10-43,516.27-21,460.62

Finding the Fourth Proportional to 31,550.10, 43,516.27 and 21,460.62

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Solution

The fourth proportional to 31,550.10, 43,516.27 and 21,460.62 is: 29,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,550.10 : 43,516.27 = 21,460.62 : x
  2. Step 2: Convert to fraction form
    31,550.10/43,516.27 = 21,460.62/x
  3. Step 3: Cross multiply
    31,550.10x = 43,516.27 × 21,460.62
  4. Step 4: Simplify right side
    31,550.10x = 933,886,134.29
  5. Step 5: Solve for x
    x = 933,886,134.29/31,550.10
  6. Step 6: Final answer
    x = 29,600.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.