Home / 20,560.11-30,852.47-18,887.06

Finding the Fourth Proportional to 20,560.11, 30,852.47 and 18,887.06

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Solution

The fourth proportional to 20,560.11, 30,852.47 and 18,887.06 is: 28,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,560.11 : 30,852.47 = 18,887.06 : x
  2. Step 2: Convert to fraction form
    20,560.11/30,852.47 = 18,887.06/x
  3. Step 3: Cross multiply
    20,560.11x = 30,852.47 × 18,887.06
  4. Step 4: Simplify right side
    20,560.11x = 582,712,374.91
  5. Step 5: Solve for x
    x = 582,712,374.91/20,560.11
  6. Step 6: Final answer
    x = 28,341.89

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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.