Home / 19,280.82-28,921.50-6,144.24

Finding the Fourth Proportional to 19,280.82, 28,921.50 and 6,144.24

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Solution

The fourth proportional to 19,280.82, 28,921.50 and 6,144.24 is: 9,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,280.82 : 28,921.50 = 6,144.24 : x
  2. Step 2: Convert to fraction form
    19,280.82/28,921.50 = 6,144.24/x
  3. Step 3: Cross multiply
    19,280.82x = 28,921.50 × 6,144.24
  4. Step 4: Simplify right side
    19,280.82x = 177,700,637.16
  5. Step 5: Solve for x
    x = 177,700,637.16/19,280.82
  6. Step 6: Final answer
    x = 9,216.45

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Double scale
Find fourth proportional to 19,281.82, 28,923 and 6,145.24
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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.