Home / 31,470.64-43,427.88-17,320.74

Finding the Fourth Proportional to 31,470.64, 43,427.88 and 17,320.74

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Solution

The fourth proportional to 31,470.64, 43,427.88 and 17,320.74 is: 23,901.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.64 : 43,427.88 = 17,320.74 : x
  2. Step 2: Convert to fraction form
    31,470.64/43,427.88 = 17,320.74/x
  3. Step 3: Cross multiply
    31,470.64x = 43,427.88 × 17,320.74
  4. Step 4: Simplify right side
    31,470.64x = 752,203,018.23
  5. Step 5: Solve for x
    x = 752,203,018.23/31,470.64
  6. Step 6: Final answer
    x = 23,901.74

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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.