Home / 27,705.78-38,233.98-15,130.44

Finding the Fourth Proportional to 27,705.78, 38,233.98 and 15,130.44

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Solution

The fourth proportional to 27,705.78, 38,233.98 and 15,130.44 is: 20,880.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,705.78 : 38,233.98 = 15,130.44 : x
  2. Step 2: Convert to fraction form
    27,705.78/38,233.98 = 15,130.44/x
  3. Step 3: Cross multiply
    27,705.78x = 38,233.98 × 15,130.44
  4. Step 4: Simplify right side
    27,705.78x = 578,496,940.35
  5. Step 5: Solve for x
    x = 578,496,940.35/27,705.78
  6. Step 6: Final answer
    x = 20,880.01

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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.