Home / 28,956.13-39,932.11-18,892.28

Finding the Fourth Proportional to 28,956.13, 39,932.11 and 18,892.28

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Solution

The fourth proportional to 28,956.13, 39,932.11 and 18,892.28 is: 26,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,956.13 : 39,932.11 = 18,892.28 : x
  2. Step 2: Convert to fraction form
    28,956.13/39,932.11 = 18,892.28/x
  3. Step 3: Cross multiply
    28,956.13x = 39,932.11 × 18,892.28
  4. Step 4: Simplify right side
    28,956.13x = 754,408,603.11
  5. Step 5: Solve for x
    x = 754,408,603.11/28,956.13
  6. Step 6: Final answer
    x = 26,053.50

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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.