Home / 29,331.20-43,996.80-17,638.40

Finding the Fourth Proportional to 29,331.20, 43,996.80 and 17,638.40

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Solution

The fourth proportional to 29,331.20, 43,996.80 and 17,638.40 is: 26,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,331.20 : 43,996.80 = 17,638.40 : x
  2. Step 2: Convert to fraction form
    29,331.20/43,996.80 = 17,638.40/x
  3. Step 3: Cross multiply
    29,331.20x = 43,996.80 × 17,638.40
  4. Step 4: Simplify right side
    29,331.20x = 776,033,157.12
  5. Step 5: Solve for x
    x = 776,033,157.12/29,331.20
  6. Step 6: Final answer
    x = 26,457.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.