Home / 25,250.30-34,845.65-13,920.20

Finding the Fourth Proportional to 25,250.30, 34,845.65 and 13,920.20

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Solution

The fourth proportional to 25,250.30, 34,845.65 and 13,920.20 is: 19,210.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,250.30 : 34,845.65 = 13,920.20 : x
  2. Step 2: Convert to fraction form
    25,250.30/34,845.65 = 13,920.20/x
  3. Step 3: Cross multiply
    25,250.30x = 34,845.65 × 13,920.20
  4. Step 4: Simplify right side
    25,250.30x = 485,058,277.70
  5. Step 5: Solve for x
    x = 485,058,277.70/25,250.30
  6. Step 6: Final answer
    x = 19,210.00

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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.