Home / 20,534.86-28,335.30-11,459.17

Finding the Fourth Proportional to 20,534.86, 28,335.30 and 11,459.17

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Solution

The fourth proportional to 20,534.86, 28,335.30 and 11,459.17 is: 15,812.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,534.86 : 28,335.30 = 11,459.17 : x
  2. Step 2: Convert to fraction form
    20,534.86/28,335.30 = 11,459.17/x
  3. Step 3: Cross multiply
    20,534.86x = 28,335.30 × 11,459.17
  4. Step 4: Simplify right side
    20,534.86x = 324,698,878.02
  5. Step 5: Solve for x
    x = 324,698,878.02/20,534.86
  6. Step 6: Final answer
    x = 15,812.09

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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.