Home / 36,424.08-54,639.36-18,889.20

Finding the Fourth Proportional to 36,424.08, 54,639.36 and 18,889.20

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Solution

The fourth proportional to 36,424.08, 54,639.36 and 18,889.20 is: 28,335.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,424.08 : 54,639.36 = 18,889.20 : x
  2. Step 2: Convert to fraction form
    36,424.08/54,639.36 = 18,889.20/x
  3. Step 3: Cross multiply
    36,424.08x = 54,639.36 × 18,889.20
  4. Step 4: Simplify right side
    36,424.08x = 1,032,093,798.91
  5. Step 5: Solve for x
    x = 1,032,093,798.91/36,424.08
  6. Step 6: Final answer
    x = 28,335.48

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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.