Home / 30,861.95-42,589.67-17,434.44

Finding the Fourth Proportional to 30,861.95, 42,589.67 and 17,434.44

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Solution

The fourth proportional to 30,861.95, 42,589.67 and 17,434.44 is: 24,059.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.95 : 42,589.67 = 17,434.44 : x
  2. Step 2: Convert to fraction form
    30,861.95/42,589.67 = 17,434.44/x
  3. Step 3: Cross multiply
    30,861.95x = 42,589.67 × 17,434.44
  4. Step 4: Simplify right side
    30,861.95x = 742,526,959.06
  5. Step 5: Solve for x
    x = 742,526,959.06/30,861.95
  6. Step 6: Final answer
    x = 24,059.63

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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.