Home / 30,899.06-42,647.04-17,470.88

Finding the Fourth Proportional to 30,899.06, 42,647.04 and 17,470.88

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Solution

The fourth proportional to 30,899.06, 42,647.04 and 17,470.88 is: 24,113.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,899.06 : 42,647.04 = 17,470.88 : x
  2. Step 2: Convert to fraction form
    30,899.06/42,647.04 = 17,470.88/x
  3. Step 3: Cross multiply
    30,899.06x = 42,647.04 × 17,470.88
  4. Step 4: Simplify right side
    30,899.06x = 745,081,318.20
  5. Step 5: Solve for x
    x = 745,081,318.20/30,899.06
  6. Step 6: Final answer
    x = 24,113.40

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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.