Home / 30,815.13-42,524.70-17,386.04

Finding the Fourth Proportional to 30,815.13, 42,524.70 and 17,386.04

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Solution

The fourth proportional to 30,815.13, 42,524.70 and 17,386.04 is: 23,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,815.13 : 42,524.70 = 17,386.04 : x
  2. Step 2: Convert to fraction form
    30,815.13/42,524.70 = 17,386.04/x
  3. Step 3: Cross multiply
    30,815.13x = 42,524.70 × 17,386.04
  4. Step 4: Simplify right side
    30,815.13x = 739,336,176.30
  5. Step 5: Solve for x
    x = 739,336,176.30/30,815.13
  6. Step 6: Final answer
    x = 23,992.63

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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.