Home / 21,077.93-29,101.11-13,527.52

Finding the Fourth Proportional to 21,077.93, 29,101.11 and 13,527.52

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Solution

The fourth proportional to 21,077.93, 29,101.11 and 13,527.52 is: 18,676.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,077.93 : 29,101.11 = 13,527.52 : x
  2. Step 2: Convert to fraction form
    21,077.93/29,101.11 = 13,527.52/x
  3. Step 3: Cross multiply
    21,077.93x = 29,101.11 × 13,527.52
  4. Step 4: Simplify right side
    21,077.93x = 393,665,774.79
  5. Step 5: Solve for x
    x = 393,665,774.79/21,077.93
  6. Step 6: Final answer
    x = 18,676.68

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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.