Home / 20,549.32-28,349.02-12,047.12

Finding the Fourth Proportional to 20,549.32, 28,349.02 and 12,047.12

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Solution

The fourth proportional to 20,549.32, 28,349.02 and 12,047.12 is: 16,619.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,549.32 : 28,349.02 = 12,047.12 : x
  2. Step 2: Convert to fraction form
    20,549.32/28,349.02 = 12,047.12/x
  3. Step 3: Cross multiply
    20,549.32x = 28,349.02 × 12,047.12
  4. Step 4: Simplify right side
    20,549.32x = 341,524,045.82
  5. Step 5: Solve for x
    x = 341,524,045.82/20,549.32
  6. Step 6: Final answer
    x = 16,619.72

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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.