Home / 30,969.56-42,739.08-17,541.20

Finding the Fourth Proportional to 30,969.56, 42,739.08 and 17,541.20

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Solution

The fourth proportional to 30,969.56, 42,739.08 and 17,541.20 is: 24,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,969.56 : 42,739.08 = 17,541.20 : x
  2. Step 2: Convert to fraction form
    30,969.56/42,739.08 = 17,541.20/x
  3. Step 3: Cross multiply
    30,969.56x = 42,739.08 × 17,541.20
  4. Step 4: Simplify right side
    30,969.56x = 749,694,750.10
  5. Step 5: Solve for x
    x = 749,694,750.10/30,969.56
  6. Step 6: Final answer
    x = 24,207.47

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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.