Home / 20,463.52-28,232.80-16,680.16

Finding the Fourth Proportional to 20,463.52, 28,232.80 and 16,680.16

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Solution

The fourth proportional to 20,463.52, 28,232.80 and 16,680.16 is: 23,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,463.52 : 28,232.80 = 16,680.16 : x
  2. Step 2: Convert to fraction form
    20,463.52/28,232.80 = 16,680.16/x
  3. Step 3: Cross multiply
    20,463.52x = 28,232.80 × 16,680.16
  4. Step 4: Simplify right side
    20,463.52x = 470,927,621.25
  5. Step 5: Solve for x
    x = 470,927,621.25/20,463.52
  6. Step 6: Final answer
    x = 23,013.03

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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.