Home / 30,861.22-42,588.48-17,431.84

Finding the Fourth Proportional to 30,861.22, 42,588.48 and 17,431.84

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Solution

The fourth proportional to 30,861.22, 42,588.48 and 17,431.84 is: 24,055.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,861.22 : 42,588.48 = 17,431.84 : x
  2. Step 2: Convert to fraction form
    30,861.22/42,588.48 = 17,431.84/x
  3. Step 3: Cross multiply
    30,861.22x = 42,588.48 × 17,431.84
  4. Step 4: Simplify right side
    30,861.22x = 742,395,569.20
  5. Step 5: Solve for x
    x = 742,395,569.20/30,861.22
  6. Step 6: Final answer
    x = 24,055.94

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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.