Home / 27,899.42-38,484.86-18,840.38

Finding the Fourth Proportional to 27,899.42, 38,484.86 and 18,840.38

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Solution

The fourth proportional to 27,899.42, 38,484.86 and 18,840.38 is: 25,988.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,899.42 : 38,484.86 = 18,840.38 : x
  2. Step 2: Convert to fraction form
    27,899.42/38,484.86 = 18,840.38/x
  3. Step 3: Cross multiply
    27,899.42x = 38,484.86 × 18,840.38
  4. Step 4: Simplify right side
    27,899.42x = 725,069,386.65
  5. Step 5: Solve for x
    x = 725,069,386.65/27,899.42
  6. Step 6: Final answer
    x = 25,988.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.