Home / 31,345.48-43,255.11-17,914.96

Finding the Fourth Proportional to 31,345.48, 43,255.11 and 17,914.96

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Solution

The fourth proportional to 31,345.48, 43,255.11 and 17,914.96 is: 24,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,345.48 : 43,255.11 = 17,914.96 : x
  2. Step 2: Convert to fraction form
    31,345.48/43,255.11 = 17,914.96/x
  3. Step 3: Cross multiply
    31,345.48x = 43,255.11 × 17,914.96
  4. Step 4: Simplify right side
    31,345.48x = 774,913,565.45
  5. Step 5: Solve for x
    x = 774,913,565.45/31,345.48
  6. Step 6: Final answer
    x = 24,721.70

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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.