Home / 28,447.84-42,671.49-9,727.66

Finding the Fourth Proportional to 28,447.84, 42,671.49 and 9,727.66

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Solution

The fourth proportional to 28,447.84, 42,671.49 and 9,727.66 is: 14,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,447.84 : 42,671.49 = 9,727.66 : x
  2. Step 2: Convert to fraction form
    28,447.84/42,671.49 = 9,727.66/x
  3. Step 3: Cross multiply
    28,447.84x = 42,671.49 × 9,727.66
  4. Step 4: Simplify right side
    28,447.84x = 415,093,746.41
  5. Step 5: Solve for x
    x = 415,093,746.41/28,447.84
  6. Step 6: Final answer
    x = 14,591.40

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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.