Home / 27,586.51-38,088.77-21,543.57

Finding the Fourth Proportional to 27,586.51, 38,088.77 and 21,543.57

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Solution

The fourth proportional to 27,586.51, 38,088.77 and 21,543.57 is: 29,745.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,586.51 : 38,088.77 = 21,543.57 : x
  2. Step 2: Convert to fraction form
    27,586.51/38,088.77 = 21,543.57/x
  3. Step 3: Cross multiply
    27,586.51x = 38,088.77 × 21,543.57
  4. Step 4: Simplify right side
    27,586.51x = 820,567,974.99
  5. Step 5: Solve for x
    x = 820,567,974.99/27,586.51
  6. Step 6: Final answer
    x = 29,745.26

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Half scale
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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.