Home / 19,430.28-29,147.34-5,581.32

Finding the Fourth Proportional to 19,430.28, 29,147.34 and 5,581.32

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Solution

The fourth proportional to 19,430.28, 29,147.34 and 5,581.32 is: 8,372.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,430.28 : 29,147.34 = 5,581.32 : x
  2. Step 2: Convert to fraction form
    19,430.28/29,147.34 = 5,581.32/x
  3. Step 3: Cross multiply
    19,430.28x = 29,147.34 × 5,581.32
  4. Step 4: Simplify right side
    19,430.28x = 162,680,631.69
  5. Step 5: Solve for x
    x = 162,680,631.69/19,430.28
  6. Step 6: Final answer
    x = 8,372.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.