Home / 29,430.28-40,586.88-21,895.48

Finding the Fourth Proportional to 29,430.28, 40,586.88 and 21,895.48

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Solution

The fourth proportional to 29,430.28, 40,586.88 and 21,895.48 is: 30,195.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,430.28 : 40,586.88 = 21,895.48 : x
  2. Step 2: Convert to fraction form
    29,430.28/40,586.88 = 21,895.48/x
  3. Step 3: Cross multiply
    29,430.28x = 40,586.88 × 21,895.48
  4. Step 4: Simplify right side
    29,430.28x = 888,669,219.30
  5. Step 5: Solve for x
    x = 888,669,219.30/29,430.28
  6. Step 6: Final answer
    x = 30,195.74

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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.