Home / 22,521.15-31,087.95-20,159.19

Finding the Fourth Proportional to 22,521.15, 31,087.95 and 20,159.19

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Solution

The fourth proportional to 22,521.15, 31,087.95 and 20,159.19 is: 27,827.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.15 : 31,087.95 = 20,159.19 : x
  2. Step 2: Convert to fraction form
    22,521.15/31,087.95 = 20,159.19/x
  3. Step 3: Cross multiply
    22,521.15x = 31,087.95 × 20,159.19
  4. Step 4: Simplify right side
    22,521.15x = 626,707,890.76
  5. Step 5: Solve for x
    x = 626,707,890.76/22,521.15
  6. Step 6: Final answer
    x = 27,827.53

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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.