Home / 29,313.56-40,452.64-15,885.14

Finding the Fourth Proportional to 29,313.56, 40,452.64 and 15,885.14

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Solution

The fourth proportional to 29,313.56, 40,452.64 and 15,885.14 is: 21,921.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,313.56 : 40,452.64 = 15,885.14 : x
  2. Step 2: Convert to fraction form
    29,313.56/40,452.64 = 15,885.14/x
  3. Step 3: Cross multiply
    29,313.56x = 40,452.64 × 15,885.14
  4. Step 4: Simplify right side
    29,313.56x = 642,595,849.77
  5. Step 5: Solve for x
    x = 642,595,849.77/29,313.56
  6. Step 6: Final answer
    x = 21,921.45

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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.