Home / 31,679.34-43,722.12-18,248.01

Finding the Fourth Proportional to 31,679.34, 43,722.12 and 18,248.01

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Solution

The fourth proportional to 31,679.34, 43,722.12 and 18,248.01 is: 25,184.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,679.34 : 43,722.12 = 18,248.01 : x
  2. Step 2: Convert to fraction form
    31,679.34/43,722.12 = 18,248.01/x
  3. Step 3: Cross multiply
    31,679.34x = 43,722.12 × 18,248.01
  4. Step 4: Simplify right side
    31,679.34x = 797,841,682.98
  5. Step 5: Solve for x
    x = 797,841,682.98/31,679.34
  6. Step 6: Final answer
    x = 25,184.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.