Home / 31,714.20-47,571.30-19,426.20

Finding the Fourth Proportional to 31,714.20, 47,571.30 and 19,426.20

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Solution

The fourth proportional to 31,714.20, 47,571.30 and 19,426.20 is: 29,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,714.20 : 47,571.30 = 19,426.20 : x
  2. Step 2: Convert to fraction form
    31,714.20/47,571.30 = 19,426.20/x
  3. Step 3: Cross multiply
    31,714.20x = 47,571.30 × 19,426.20
  4. Step 4: Simplify right side
    31,714.20x = 924,129,588.06
  5. Step 5: Solve for x
    x = 924,129,588.06/31,714.20
  6. Step 6: Final answer
    x = 29,139.30

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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.