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Finding the Fourth Proportional to 31,465.76, 47,026.92 and 28,974.88

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Solution

The fourth proportional to 31,465.76, 47,026.92 and 28,974.88 is: 43,304.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,465.76 : 47,026.92 = 28,974.88 : x
  2. Step 2: Convert to fraction form
    31,465.76/47,026.92 = 28,974.88/x
  3. Step 3: Cross multiply
    31,465.76x = 47,026.92 × 28,974.88
  4. Step 4: Simplify right side
    31,465.76x = 1,362,599,363.77
  5. Step 5: Solve for x
    x = 1,362,599,363.77/31,465.76
  6. Step 6: Final answer
    x = 43,304.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.