Home / 30,861.20-42,588.48-17,432.48

Finding the Fourth Proportional to 30,861.20, 42,588.48 and 17,432.48

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Solution

The fourth proportional to 30,861.20, 42,588.48 and 17,432.48 is: 24,056.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.20 : 42,588.48 = 17,432.48 : x
  2. Step 2: Convert to fraction form
    30,861.20/42,588.48 = 17,432.48/x
  3. Step 3: Cross multiply
    30,861.20x = 42,588.48 × 17,432.48
  4. Step 4: Simplify right side
    30,861.20x = 742,422,825.83
  5. Step 5: Solve for x
    x = 742,422,825.83/30,861.20
  6. Step 6: Final answer
    x = 24,056.84

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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.