Home / 28,085.28-38,753.96-16,756.08

Finding the Fourth Proportional to 28,085.28, 38,753.96 and 16,756.08

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Solution

The fourth proportional to 28,085.28, 38,753.96 and 16,756.08 is: 23,121.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.28 : 38,753.96 = 16,756.08 : x
  2. Step 2: Convert to fraction form
    28,085.28/38,753.96 = 16,756.08/x
  3. Step 3: Cross multiply
    28,085.28x = 38,753.96 × 16,756.08
  4. Step 4: Simplify right side
    28,085.28x = 649,364,370.30
  5. Step 5: Solve for x
    x = 649,364,370.30/28,085.28
  6. Step 6: Final answer
    x = 23,121.16

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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.