Home / 20,309.16-27,999.08-14,251.17

Finding the Fourth Proportional to 20,309.16, 27,999.08 and 14,251.17

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Solution

The fourth proportional to 20,309.16, 27,999.08 and 14,251.17 is: 19,647.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,309.16 : 27,999.08 = 14,251.17 : x
  2. Step 2: Convert to fraction form
    20,309.16/27,999.08 = 14,251.17/x
  3. Step 3: Cross multiply
    20,309.16x = 27,999.08 × 14,251.17
  4. Step 4: Simplify right side
    20,309.16x = 399,019,437.67
  5. Step 5: Solve for x
    x = 399,019,437.67/20,309.16
  6. Step 6: Final answer
    x = 19,647.27

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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.