Home / 31,642.25-47,439.95-19,159.34

Finding the Fourth Proportional to 31,642.25, 47,439.95 and 19,159.34

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Solution

The fourth proportional to 31,642.25, 47,439.95 and 19,159.34 is: 28,724.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,642.25 : 47,439.95 = 19,159.34 : x
  2. Step 2: Convert to fraction form
    31,642.25/47,439.95 = 19,159.34/x
  3. Step 3: Cross multiply
    31,642.25x = 47,439.95 × 19,159.34
  4. Step 4: Simplify right side
    31,642.25x = 908,917,798.64
  5. Step 5: Solve for x
    x = 908,917,798.64/31,642.25
  6. Step 6: Final answer
    x = 28,724.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.