Home / 31,598.70-47,425.32-12,889.05

Finding the Fourth Proportional to 31,598.70, 47,425.32 and 12,889.05

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Solution

The fourth proportional to 31,598.70, 47,425.32 and 12,889.05 is: 19,344.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,598.70 : 47,425.32 = 12,889.05 : x
  2. Step 2: Convert to fraction form
    31,598.70/47,425.32 = 12,889.05/x
  3. Step 3: Cross multiply
    31,598.70x = 47,425.32 × 12,889.05
  4. Step 4: Simplify right side
    31,598.70x = 611,267,320.75
  5. Step 5: Solve for x
    x = 611,267,320.75/31,598.70
  6. Step 6: Final answer
    x = 19,344.70

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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.