Home / 20,527.29-30,826.11-12,676.25

Finding the Fourth Proportional to 20,527.29, 30,826.11 and 12,676.25

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Solution

The fourth proportional to 20,527.29, 30,826.11 and 12,676.25 is: 19,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.29 : 30,826.11 = 12,676.25 : x
  2. Step 2: Convert to fraction form
    20,527.29/30,826.11 = 12,676.25/x
  3. Step 3: Cross multiply
    20,527.29x = 30,826.11 × 12,676.25
  4. Step 4: Simplify right side
    20,527.29x = 390,759,601.49
  5. Step 5: Solve for x
    x = 390,759,601.49/20,527.29
  6. Step 6: Final answer
    x = 19,036.10

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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.