Home / 29,431.05-40,621.29-19,360.48

Finding the Fourth Proportional to 29,431.05, 40,621.29 and 19,360.48

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Solution

The fourth proportional to 29,431.05, 40,621.29 and 19,360.48 is: 26,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,431.05 : 40,621.29 = 19,360.48 : x
  2. Step 2: Convert to fraction form
    29,431.05/40,621.29 = 19,360.48/x
  3. Step 3: Cross multiply
    29,431.05x = 40,621.29 × 19,360.48
  4. Step 4: Simplify right side
    29,431.05x = 786,447,672.62
  5. Step 5: Solve for x
    x = 786,447,672.62/29,431.05
  6. Step 6: Final answer
    x = 26,721.70

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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.