Home / 31,478.66-43,440.85-17,332.01

Finding the Fourth Proportional to 31,478.66, 43,440.85 and 17,332.01

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Solution

The fourth proportional to 31,478.66, 43,440.85 and 17,332.01 is: 23,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,478.66 : 43,440.85 = 17,332.01 : x
  2. Step 2: Convert to fraction form
    31,478.66/43,440.85 = 17,332.01/x
  3. Step 3: Cross multiply
    31,478.66x = 43,440.85 × 17,332.01
  4. Step 4: Simplify right side
    31,478.66x = 752,917,409.58
  5. Step 5: Solve for x
    x = 752,917,409.58/31,478.66
  6. Step 6: Final answer
    x = 23,918.34

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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.