Home / 27,681.90-41,502.69-18,889.26

Finding the Fourth Proportional to 27,681.90, 41,502.69 and 18,889.26

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Solution

The fourth proportional to 27,681.90, 41,502.69 and 18,889.26 is: 28,320.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,681.90 : 41,502.69 = 18,889.26 : x
  2. Step 2: Convert to fraction form
    27,681.90/41,502.69 = 18,889.26/x
  3. Step 3: Cross multiply
    27,681.90x = 41,502.69 × 18,889.26
  4. Step 4: Simplify right side
    27,681.90x = 783,955,102.11
  5. Step 5: Solve for x
    x = 783,955,102.11/27,681.90
  6. Step 6: Final answer
    x = 28,320.13

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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.