Home / 25,152.80-37,664.40-18,543.20

Finding the Fourth Proportional to 25,152.80, 37,664.40 and 18,543.20

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Solution

The fourth proportional to 25,152.80, 37,664.40 and 18,543.20 is: 27,767.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,152.80 : 37,664.40 = 18,543.20 : x
  2. Step 2: Convert to fraction form
    25,152.80/37,664.40 = 18,543.20/x
  3. Step 3: Cross multiply
    25,152.80x = 37,664.40 × 18,543.20
  4. Step 4: Simplify right side
    25,152.80x = 698,418,502.08
  5. Step 5: Solve for x
    x = 698,418,502.08/25,152.80
  6. Step 6: Final answer
    x = 27,767.03

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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.