Home / 20,326.08-30,502.14-10,972.61

Finding the Fourth Proportional to 20,326.08, 30,502.14 and 10,972.61

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Solution

The fourth proportional to 20,326.08, 30,502.14 and 10,972.61 is: 16,465.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,326.08 : 30,502.14 = 10,972.61 : x
  2. Step 2: Convert to fraction form
    20,326.08/30,502.14 = 10,972.61/x
  3. Step 3: Cross multiply
    20,326.08x = 30,502.14 × 10,972.61
  4. Step 4: Simplify right side
    20,326.08x = 334,688,102.77
  5. Step 5: Solve for x
    x = 334,688,102.77/20,326.08
  6. Step 6: Final answer
    x = 16,465.94

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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.