Home / 22,639.76-31,251.26-19,440.21

Finding the Fourth Proportional to 22,639.76, 31,251.26 and 19,440.21

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Solution

The fourth proportional to 22,639.76, 31,251.26 and 19,440.21 is: 26,834.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,639.76 : 31,251.26 = 19,440.21 : x
  2. Step 2: Convert to fraction form
    22,639.76/31,251.26 = 19,440.21/x
  3. Step 3: Cross multiply
    22,639.76x = 31,251.26 × 19,440.21
  4. Step 4: Simplify right side
    22,639.76x = 607,531,055.47
  5. Step 5: Solve for x
    x = 607,531,055.47/22,639.76
  6. Step 6: Final answer
    x = 26,834.70

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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.