Home / 20,693.52-31,015.95-9,576.72

Finding the Fourth Proportional to 20,693.52, 31,015.95 and 9,576.72

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Solution

The fourth proportional to 20,693.52, 31,015.95 and 9,576.72 is: 14,353.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,693.52 : 31,015.95 = 9,576.72 : x
  2. Step 2: Convert to fraction form
    20,693.52/31,015.95 = 9,576.72/x
  3. Step 3: Cross multiply
    20,693.52x = 31,015.95 × 9,576.72
  4. Step 4: Simplify right side
    20,693.52x = 297,031,068.68
  5. Step 5: Solve for x
    x = 297,031,068.68/20,693.52
  6. Step 6: Final answer
    x = 14,353.82

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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.