Home / 30,790.17-42,482.61-18,849.15

Finding the Fourth Proportional to 30,790.17, 42,482.61 and 18,849.15

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Solution

The fourth proportional to 30,790.17, 42,482.61 and 18,849.15 is: 26,007.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790.17 : 42,482.61 = 18,849.15 : x
  2. Step 2: Convert to fraction form
    30,790.17/42,482.61 = 18,849.15/x
  3. Step 3: Cross multiply
    30,790.17x = 42,482.61 × 18,849.15
  4. Step 4: Simplify right side
    30,790.17x = 800,761,088.28
  5. Step 5: Solve for x
    x = 800,761,088.28/30,790.17
  6. Step 6: Final answer
    x = 26,007.04

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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.