Home / 27,881.96-38,477.13-15,135.13

Finding the Fourth Proportional to 27,881.96, 38,477.13 and 15,135.13

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Solution

The fourth proportional to 27,881.96, 38,477.13 and 15,135.13 is: 20,886.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,881.96 : 38,477.13 = 15,135.13 : x
  2. Step 2: Convert to fraction form
    27,881.96/38,477.13 = 15,135.13/x
  3. Step 3: Cross multiply
    27,881.96x = 38,477.13 × 15,135.13
  4. Step 4: Simplify right side
    27,881.96x = 582,356,172.19
  5. Step 5: Solve for x
    x = 582,356,172.19/27,881.96
  6. Step 6: Final answer
    x = 20,886.49

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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.