Home / 31,720.54-47,589.46-10,947.10

Finding the Fourth Proportional to 31,720.54, 47,589.46 and 10,947.10

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Solution

The fourth proportional to 31,720.54, 47,589.46 and 10,947.10 is: 16,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,720.54 : 47,589.46 = 10,947.10 : x
  2. Step 2: Convert to fraction form
    31,720.54/47,589.46 = 10,947.10/x
  3. Step 3: Cross multiply
    31,720.54x = 47,589.46 × 10,947.10
  4. Step 4: Simplify right side
    31,720.54x = 520,966,577.57
  5. Step 5: Solve for x
    x = 520,966,577.57/31,720.54
  6. Step 6: Final answer
    x = 16,423.64

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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.