Home / 15,625.03-21,572.61-13,943.55

Finding the Fourth Proportional to 15,625.03, 21,572.61 and 13,943.55

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Solution

The fourth proportional to 15,625.03, 21,572.61 and 13,943.55 is: 19,251.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,625.03 : 21,572.61 = 13,943.55 : x
  2. Step 2: Convert to fraction form
    15,625.03/21,572.61 = 13,943.55/x
  3. Step 3: Cross multiply
    15,625.03x = 21,572.61 × 13,943.55
  4. Step 4: Simplify right side
    15,625.03x = 300,798,696.45
  5. Step 5: Solve for x
    x = 300,798,696.45/15,625.03
  6. Step 6: Final answer
    x = 19,251.09

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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.