Home / 28,439.29-42,659.54-8,717.41

Finding the Fourth Proportional to 28,439.29, 42,659.54 and 8,717.41

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Solution

The fourth proportional to 28,439.29, 42,659.54 and 8,717.41 is: 13,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,439.29 : 42,659.54 = 8,717.41 : x
  2. Step 2: Convert to fraction form
    28,439.29/42,659.54 = 8,717.41/x
  3. Step 3: Cross multiply
    28,439.29x = 42,659.54 × 8,717.41
  4. Step 4: Simplify right side
    28,439.29x = 371,880,700.59
  5. Step 5: Solve for x
    x = 371,880,700.59/28,439.29
  6. Step 6: Final answer
    x = 13,076.30

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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.