Home / 30,861.68-42,588.92-17,437.28

Finding the Fourth Proportional to 30,861.68, 42,588.92 and 17,437.28

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Solution

The fourth proportional to 30,861.68, 42,588.92 and 17,437.28 is: 24,063.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.68 : 42,588.92 = 17,437.28 : x
  2. Step 2: Convert to fraction form
    30,861.68/42,588.92 = 17,437.28/x
  3. Step 3: Cross multiply
    30,861.68x = 42,588.92 × 17,437.28
  4. Step 4: Simplify right side
    30,861.68x = 742,634,922.94
  5. Step 5: Solve for x
    x = 742,634,922.94/30,861.68
  6. Step 6: Final answer
    x = 24,063.33

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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.