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Finding the Fourth Proportional to 21,901.77, 32,854.41 and 8,746.92

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Solution

The fourth proportional to 21,901.77, 32,854.41 and 8,746.92 is: 13,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,901.77 : 32,854.41 = 8,746.92 : x
  2. Step 2: Convert to fraction form
    21,901.77/32,854.41 = 8,746.92/x
  3. Step 3: Cross multiply
    21,901.77x = 32,854.41 × 8,746.92
  4. Step 4: Simplify right side
    21,901.77x = 287,374,895.92
  5. Step 5: Solve for x
    x = 287,374,895.92/21,901.77
  6. Step 6: Final answer
    x = 13,121.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.