Home / 31,387.80-43,322.95-17,966.71

Finding the Fourth Proportional to 31,387.80, 43,322.95 and 17,966.71

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Solution

The fourth proportional to 31,387.80, 43,322.95 and 17,966.71 is: 24,798.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,387.80 : 43,322.95 = 17,966.71 : x
  2. Step 2: Convert to fraction form
    31,387.80/43,322.95 = 17,966.71/x
  3. Step 3: Cross multiply
    31,387.80x = 43,322.95 × 17,966.71
  4. Step 4: Simplify right side
    31,387.80x = 778,370,955.61
  5. Step 5: Solve for x
    x = 778,370,955.61/31,387.80
  6. Step 6: Final answer
    x = 24,798.52

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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.