Home / 31,809.94-47,700.10-11,805.50

Finding the Fourth Proportional to 31,809.94, 47,700.10 and 11,805.50

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Solution

The fourth proportional to 31,809.94, 47,700.10 and 11,805.50 is: 17,702.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,809.94 : 47,700.10 = 11,805.50 : x
  2. Step 2: Convert to fraction form
    31,809.94/47,700.10 = 11,805.50/x
  3. Step 3: Cross multiply
    31,809.94x = 47,700.10 × 11,805.50
  4. Step 4: Simplify right side
    31,809.94x = 563,123,649.80
  5. Step 5: Solve for x
    x = 563,123,649.80/31,809.94
  6. Step 6: Final answer
    x = 17,702.76

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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.