Home / 36,345.30-54,521.55-12,649.20

Finding the Fourth Proportional to 36,345.30, 54,521.55 and 12,649.20

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Solution

The fourth proportional to 36,345.30, 54,521.55 and 12,649.20 is: 18,975.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,345.30 : 54,521.55 = 12,649.20 : x
  2. Step 2: Convert to fraction form
    36,345.30/54,521.55 = 12,649.20/x
  3. Step 3: Cross multiply
    36,345.30x = 54,521.55 × 12,649.20
  4. Step 4: Simplify right side
    36,345.30x = 689,653,990.26
  5. Step 5: Solve for x
    x = 689,653,990.26/36,345.30
  6. Step 6: Final answer
    x = 18,975.05

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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.