Home / 30,732.16-42,411.12-17,303.86

Finding the Fourth Proportional to 30,732.16, 42,411.12 and 17,303.86

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Solution

The fourth proportional to 30,732.16, 42,411.12 and 17,303.86 is: 23,879.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.16 : 42,411.12 = 17,303.86 : x
  2. Step 2: Convert to fraction form
    30,732.16/42,411.12 = 17,303.86/x
  3. Step 3: Cross multiply
    30,732.16x = 42,411.12 × 17,303.86
  4. Step 4: Simplify right side
    30,732.16x = 733,876,082.92
  5. Step 5: Solve for x
    x = 733,876,082.92/30,732.16
  6. Step 6: Final answer
    x = 23,879.74

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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.