Home / 29,313.85-40,453.28-15,885.12

Finding the Fourth Proportional to 29,313.85, 40,453.28 and 15,885.12

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Solution

The fourth proportional to 29,313.85, 40,453.28 and 15,885.12 is: 21,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,313.85 : 40,453.28 = 15,885.12 : x
  2. Step 2: Convert to fraction form
    29,313.85/40,453.28 = 15,885.12/x
  3. Step 3: Cross multiply
    29,313.85x = 40,453.28 × 15,885.12
  4. Step 4: Simplify right side
    29,313.85x = 642,605,207.19
  5. Step 5: Solve for x
    x = 642,605,207.19/29,313.85
  6. Step 6: Final answer
    x = 21,921.56

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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.