Home / 28,077.30-42,120.27-13,294.26

Finding the Fourth Proportional to 28,077.30, 42,120.27 and 13,294.26

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Solution

The fourth proportional to 28,077.30, 42,120.27 and 13,294.26 is: 19,943.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.30 : 42,120.27 = 13,294.26 : x
  2. Step 2: Convert to fraction form
    28,077.30/42,120.27 = 13,294.26/x
  3. Step 3: Cross multiply
    28,077.30x = 42,120.27 × 13,294.26
  4. Step 4: Simplify right side
    28,077.30x = 559,957,820.65
  5. Step 5: Solve for x
    x = 559,957,820.65/28,077.30
  6. Step 6: Final answer
    x = 19,943.44

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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.