Home / 15,421.13-23,131.29-4,327.91

Finding the Fourth Proportional to 15,421.13, 23,131.29 and 4,327.91

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Solution

The fourth proportional to 15,421.13, 23,131.29 and 4,327.91 is: 6,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.13 : 23,131.29 = 4,327.91 : x
  2. Step 2: Convert to fraction form
    15,421.13/23,131.29 = 4,327.91/x
  3. Step 3: Cross multiply
    15,421.13x = 23,131.29 × 4,327.91
  4. Step 4: Simplify right side
    15,421.13x = 100,110,141.30
  5. Step 5: Solve for x
    x = 100,110,141.30/15,421.13
  6. Step 6: Final answer
    x = 6,491.75

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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.