Home / 20,695.31-28,560.15-14,656.37

Finding the Fourth Proportional to 20,695.31, 28,560.15 and 14,656.37

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Solution

The fourth proportional to 20,695.31, 28,560.15 and 14,656.37 is: 20,226.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,695.31 : 28,560.15 = 14,656.37 : x
  2. Step 2: Convert to fraction form
    20,695.31/28,560.15 = 14,656.37/x
  3. Step 3: Cross multiply
    20,695.31x = 28,560.15 × 14,656.37
  4. Step 4: Simplify right side
    20,695.31x = 418,588,104.40
  5. Step 5: Solve for x
    x = 418,588,104.40/20,695.31
  6. Step 6: Final answer
    x = 20,226.23

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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.