Home / 31,151.34-42,989.07-17,004.30

Finding the Fourth Proportional to 31,151.34, 42,989.07 and 17,004.30

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Solution

The fourth proportional to 31,151.34, 42,989.07 and 17,004.30 is: 23,466.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,151.34 : 42,989.07 = 17,004.30 : x
  2. Step 2: Convert to fraction form
    31,151.34/42,989.07 = 17,004.30/x
  3. Step 3: Cross multiply
    31,151.34x = 42,989.07 × 17,004.30
  4. Step 4: Simplify right side
    31,151.34x = 730,999,043.00
  5. Step 5: Solve for x
    x = 730,999,043.00/31,151.34
  6. Step 6: Final answer
    x = 23,466.05

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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.