Home / 28,286.31-42,434.94-9,569.40

Finding the Fourth Proportional to 28,286.31, 42,434.94 and 9,569.40

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Solution

The fourth proportional to 28,286.31, 42,434.94 and 9,569.40 is: 14,355.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.31 : 42,434.94 = 9,569.40 : x
  2. Step 2: Convert to fraction form
    28,286.31/42,434.94 = 9,569.40/x
  3. Step 3: Cross multiply
    28,286.31x = 42,434.94 × 9,569.40
  4. Step 4: Simplify right side
    28,286.31x = 406,076,767.60
  5. Step 5: Solve for x
    x = 406,076,767.60/28,286.31
  6. Step 6: Final answer
    x = 14,355.95

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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.