Home / 20,886.08-31,331.28-7,036.16

Finding the Fourth Proportional to 20,886.08, 31,331.28 and 7,036.16

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Solution

The fourth proportional to 20,886.08, 31,331.28 and 7,036.16 is: 10,554.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,886.08 : 31,331.28 = 7,036.16 : x
  2. Step 2: Convert to fraction form
    20,886.08/31,331.28 = 7,036.16/x
  3. Step 3: Cross multiply
    20,886.08x = 31,331.28 × 7,036.16
  4. Step 4: Simplify right side
    20,886.08x = 220,451,899.08
  5. Step 5: Solve for x
    x = 220,451,899.08/20,886.08
  6. Step 6: Final answer
    x = 10,554.97

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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.