Home / 20,322.54-28,045.98-11,370.06

Finding the Fourth Proportional to 20,322.54, 28,045.98 and 11,370.06

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Solution

The fourth proportional to 20,322.54, 28,045.98 and 11,370.06 is: 15,691.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.54 : 28,045.98 = 11,370.06 : x
  2. Step 2: Convert to fraction form
    20,322.54/28,045.98 = 11,370.06/x
  3. Step 3: Cross multiply
    20,322.54x = 28,045.98 × 11,370.06
  4. Step 4: Simplify right side
    20,322.54x = 318,884,475.36
  5. Step 5: Solve for x
    x = 318,884,475.36/20,322.54
  6. Step 6: Final answer
    x = 15,691.17

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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.