Home / 19,380.87-29,065.77-5,337.36

Finding the Fourth Proportional to 19,380.87, 29,065.77 and 5,337.36

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Solution

The fourth proportional to 19,380.87, 29,065.77 and 5,337.36 is: 8,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,380.87 : 29,065.77 = 5,337.36 : x
  2. Step 2: Convert to fraction form
    19,380.87/29,065.77 = 5,337.36/x
  3. Step 3: Cross multiply
    19,380.87x = 29,065.77 × 5,337.36
  4. Step 4: Simplify right side
    19,380.87x = 155,134,478.17
  5. Step 5: Solve for x
    x = 155,134,478.17/19,380.87
  6. Step 6: Final answer
    x = 8,004.52

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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.