Home / 19,330.23-28,997.87-5,479.59

Finding the Fourth Proportional to 19,330.23, 28,997.87 and 5,479.59

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Solution

The fourth proportional to 19,330.23, 28,997.87 and 5,479.59 is: 8,220.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,330.23 : 28,997.87 = 5,479.59 : x
  2. Step 2: Convert to fraction form
    19,330.23/28,997.87 = 5,479.59/x
  3. Step 3: Cross multiply
    19,330.23x = 28,997.87 × 5,479.59
  4. Step 4: Simplify right side
    19,330.23x = 158,896,438.47
  5. Step 5: Solve for x
    x = 158,896,438.47/19,330.23
  6. Step 6: Final answer
    x = 8,220.10

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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.