Home / 18,024.80-27,038.88-4,877.28

Finding the Fourth Proportional to 18,024.80, 27,038.88 and 4,877.28

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Solution

The fourth proportional to 18,024.80, 27,038.88 and 4,877.28 is: 7,316.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,024.80 : 27,038.88 = 4,877.28 : x
  2. Step 2: Convert to fraction form
    18,024.80/27,038.88 = 4,877.28/x
  3. Step 3: Cross multiply
    18,024.80x = 27,038.88 × 4,877.28
  4. Step 4: Simplify right side
    18,024.80x = 131,876,188.65
  5. Step 5: Solve for x
    x = 131,876,188.65/18,024.80
  6. Step 6: Final answer
    x = 7,316.38

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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.