Home / 19,759.76-29,639.70-5,720.96

Finding the Fourth Proportional to 19,759.76, 29,639.70 and 5,720.96

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Solution

The fourth proportional to 19,759.76, 29,639.70 and 5,720.96 is: 8,581.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,759.76 : 29,639.70 = 5,720.96 : x
  2. Step 2: Convert to fraction form
    19,759.76/29,639.70 = 5,720.96/x
  3. Step 3: Cross multiply
    19,759.76x = 29,639.70 × 5,720.96
  4. Step 4: Simplify right side
    19,759.76x = 169,567,538.11
  5. Step 5: Solve for x
    x = 169,567,538.11/19,759.76
  6. Step 6: Final answer
    x = 8,581.46

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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.