Home / 31,995.84-47,988.30-8,616.81

Finding the Fourth Proportional to 31,995.84, 47,988.30 and 8,616.81

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Solution

The fourth proportional to 31,995.84, 47,988.30 and 8,616.81 is: 12,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,995.84 : 47,988.30 = 8,616.81 : x
  2. Step 2: Convert to fraction form
    31,995.84/47,988.30 = 8,616.81/x
  3. Step 3: Cross multiply
    31,995.84x = 47,988.30 × 8,616.81
  4. Step 4: Simplify right side
    31,995.84x = 413,506,063.32
  5. Step 5: Solve for x
    x = 413,506,063.32/31,995.84
  6. Step 6: Final answer
    x = 12,923.74

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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.