Home / 20,352.24-28,071.52-18,679.04

Finding the Fourth Proportional to 20,352.24, 28,071.52 and 18,679.04

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Solution

The fourth proportional to 20,352.24, 28,071.52 and 18,679.04 is: 25,763.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,352.24 : 28,071.52 = 18,679.04 : x
  2. Step 2: Convert to fraction form
    20,352.24/28,071.52 = 18,679.04/x
  3. Step 3: Cross multiply
    20,352.24x = 28,071.52 × 18,679.04
  4. Step 4: Simplify right side
    20,352.24x = 524,349,044.94
  5. Step 5: Solve for x
    x = 524,349,044.94/20,352.24
  6. Step 6: Final answer
    x = 25,763.70

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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.