Home / 40,264.68-55,571.32-28,971.56

Finding the Fourth Proportional to 40,264.68, 55,571.32 and 28,971.56

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Solution

The fourth proportional to 40,264.68, 55,571.32 and 28,971.56 is: 39,985.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,264.68 : 55,571.32 = 28,971.56 : x
  2. Step 2: Convert to fraction form
    40,264.68/55,571.32 = 28,971.56/x
  3. Step 3: Cross multiply
    40,264.68x = 55,571.32 × 28,971.56
  4. Step 4: Simplify right side
    40,264.68x = 1,609,987,531.25
  5. Step 5: Solve for x
    x = 1,609,987,531.25/40,264.68
  6. Step 6: Final answer
    x = 39,985.11

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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.