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Finding the Fourth Proportional to 28,444.51, 42,671.72 and 9,726.42

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Solution

The fourth proportional to 28,444.51, 42,671.72 and 9,726.42 is: 14,591.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.51 : 42,671.72 = 9,726.42 : x
  2. Step 2: Convert to fraction form
    28,444.51/42,671.72 = 9,726.42/x
  3. Step 3: Cross multiply
    28,444.51x = 42,671.72 × 9,726.42
  4. Step 4: Simplify right side
    28,444.51x = 415,043,095.16
  5. Step 5: Solve for x
    x = 415,043,095.16/28,444.51
  6. Step 6: Final answer
    x = 14,591.33

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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.