Home / 30,809.11-42,518.54-17,375.46

Finding the Fourth Proportional to 30,809.11, 42,518.54 and 17,375.46

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Solution

The fourth proportional to 30,809.11, 42,518.54 and 17,375.46 is: 23,979.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.11 : 42,518.54 = 17,375.46 : x
  2. Step 2: Convert to fraction form
    30,809.11/42,518.54 = 17,375.46/x
  3. Step 3: Cross multiply
    30,809.11x = 42,518.54 × 17,375.46
  4. Step 4: Simplify right side
    30,809.11x = 738,779,191.03
  5. Step 5: Solve for x
    x = 738,779,191.03/30,809.11
  6. Step 6: Final answer
    x = 23,979.24

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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.