Home / 31,689.96-43,752.80-22,017.48

Finding the Fourth Proportional to 31,689.96, 43,752.80 and 22,017.48

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Solution

The fourth proportional to 31,689.96, 43,752.80 and 22,017.48 is: 30,398.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,689.96 : 43,752.80 = 22,017.48 : x
  2. Step 2: Convert to fraction form
    31,689.96/43,752.80 = 22,017.48/x
  3. Step 3: Cross multiply
    31,689.96x = 43,752.80 × 22,017.48
  4. Step 4: Simplify right side
    31,689.96x = 963,326,398.94
  5. Step 5: Solve for x
    x = 963,326,398.94/31,689.96
  6. Step 6: Final answer
    x = 30,398.47

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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.