Home / 25,943.64-35,799.80-15,331.25

Finding the Fourth Proportional to 25,943.64, 35,799.80 and 15,331.25

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Solution

The fourth proportional to 25,943.64, 35,799.80 and 15,331.25 is: 21,155.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.64 : 35,799.80 = 15,331.25 : x
  2. Step 2: Convert to fraction form
    25,943.64/35,799.80 = 15,331.25/x
  3. Step 3: Cross multiply
    25,943.64x = 35,799.80 × 15,331.25
  4. Step 4: Simplify right side
    25,943.64x = 548,855,428.09
  5. Step 5: Solve for x
    x = 548,855,428.09/25,943.64
  6. Step 6: Final answer
    x = 21,155.68

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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.