Home / 29,266.15-40,387-15,837.12

Finding the Fourth Proportional to 29,266.15, 40,387 and 15,837.12

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Solution

The fourth proportional to 29,266.15, 40,387 and 15,837.12 is: 21,855.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,266.15 : 40,387 = 15,837.12 : x
  2. Step 2: Convert to fraction form
    29,266.15/40,387 = 15,837.12/x
  3. Step 3: Cross multiply
    29,266.15x = 40,387 × 15,837.12
  4. Step 4: Simplify right side
    29,266.15x = 639,613,765.44
  5. Step 5: Solve for x
    x = 639,613,765.44/29,266.15
  6. Step 6: Final answer
    x = 21,855.07

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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.