Home / 31,155.64-42,995.21-17,726.95

Finding the Fourth Proportional to 31,155.64, 42,995.21 and 17,726.95

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Solution

The fourth proportional to 31,155.64, 42,995.21 and 17,726.95 is: 24,463.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,155.64 : 42,995.21 = 17,726.95 : x
  2. Step 2: Convert to fraction form
    31,155.64/42,995.21 = 17,726.95/x
  3. Step 3: Cross multiply
    31,155.64x = 42,995.21 × 17,726.95
  4. Step 4: Simplify right side
    31,155.64x = 762,173,903.02
  5. Step 5: Solve for x
    x = 762,173,903.02/31,155.64
  6. Step 6: Final answer
    x = 24,463.43

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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.