Home / 27,980.10-38,611.81-15,233.00

Finding the Fourth Proportional to 27,980.10, 38,611.81 and 15,233.00

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Solution

The fourth proportional to 27,980.10, 38,611.81 and 15,233.00 is: 21,021.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,980.10 : 38,611.81 = 15,233.00 : x
  2. Step 2: Convert to fraction form
    27,980.10/38,611.81 = 15,233.00/x
  3. Step 3: Cross multiply
    27,980.10x = 38,611.81 × 15,233.00
  4. Step 4: Simplify right side
    27,980.10x = 588,173,822.34
  5. Step 5: Solve for x
    x = 588,173,822.34/27,980.10
  6. Step 6: Final answer
    x = 21,021.15

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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.