Home / 25,943.82-35,802.51-15,338.70

Finding the Fourth Proportional to 25,943.82, 35,802.51 and 15,338.70

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Solution

The fourth proportional to 25,943.82, 35,802.51 and 15,338.70 is: 21,167.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,943.82 : 35,802.51 = 15,338.70 : x
  2. Step 2: Convert to fraction form
    25,943.82/35,802.51 = 15,338.70/x
  3. Step 3: Cross multiply
    25,943.82x = 35,802.51 × 15,338.70
  4. Step 4: Simplify right side
    25,943.82x = 549,163,960.14
  5. Step 5: Solve for x
    x = 549,163,960.14/25,943.82
  6. Step 6: Final answer
    x = 21,167.43

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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.