Home / 20,823.66-31,235.88-9,727.32

Finding the Fourth Proportional to 20,823.66, 31,235.88 and 9,727.32

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Solution

The fourth proportional to 20,823.66, 31,235.88 and 9,727.32 is: 14,591.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823.66 : 31,235.88 = 9,727.32 : x
  2. Step 2: Convert to fraction form
    20,823.66/31,235.88 = 9,727.32/x
  3. Step 3: Cross multiply
    20,823.66x = 31,235.88 × 9,727.32
  4. Step 4: Simplify right side
    20,823.66x = 303,841,400.24
  5. Step 5: Solve for x
    x = 303,841,400.24/20,823.66
  6. Step 6: Final answer
    x = 14,591.16

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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.