Home / 22,761.57-31,430.34-14,277.90

Finding the Fourth Proportional to 22,761.57, 31,430.34 and 14,277.90

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Solution

The fourth proportional to 22,761.57, 31,430.34 and 14,277.90 is: 19,715.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,761.57 : 31,430.34 = 14,277.90 : x
  2. Step 2: Convert to fraction form
    22,761.57/31,430.34 = 14,277.90/x
  3. Step 3: Cross multiply
    22,761.57x = 31,430.34 × 14,277.90
  4. Step 4: Simplify right side
    22,761.57x = 448,759,251.49
  5. Step 5: Solve for x
    x = 448,759,251.49/22,761.57
  6. Step 6: Final answer
    x = 19,715.65

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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.