Home / 28,079.16-38,744.82-16,140.26

Finding the Fourth Proportional to 28,079.16, 38,744.82 and 16,140.26

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Solution

The fourth proportional to 28,079.16, 38,744.82 and 16,140.26 is: 22,271.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.16 : 38,744.82 = 16,140.26 : x
  2. Step 2: Convert to fraction form
    28,079.16/38,744.82 = 16,140.26/x
  3. Step 3: Cross multiply
    28,079.16x = 38,744.82 × 16,140.26
  4. Step 4: Simplify right side
    28,079.16x = 625,351,468.45
  5. Step 5: Solve for x
    x = 625,351,468.45/28,079.16
  6. Step 6: Final answer
    x = 22,271.02

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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.