Home / 22,521.65-31,088.64-20,159.69

Finding the Fourth Proportional to 22,521.65, 31,088.64 and 20,159.69

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Solution

The fourth proportional to 22,521.65, 31,088.64 and 20,159.69 is: 27,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,521.65 : 31,088.64 = 20,159.69 : x
  2. Step 2: Convert to fraction form
    22,521.65/31,088.64 = 20,159.69/x
  3. Step 3: Cross multiply
    22,521.65x = 31,088.64 × 20,159.69
  4. Step 4: Simplify right side
    22,521.65x = 626,737,344.92
  5. Step 5: Solve for x
    x = 626,737,344.92/22,521.65
  6. Step 6: Final answer
    x = 27,828.22

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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.