Home / 20,086.10-27,718.36-11,133.52

Finding the Fourth Proportional to 20,086.10, 27,718.36 and 11,133.52

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Solution

The fourth proportional to 20,086.10, 27,718.36 and 11,133.52 is: 15,364.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,086.10 : 27,718.36 = 11,133.52 : x
  2. Step 2: Convert to fraction form
    20,086.10/27,718.36 = 11,133.52/x
  3. Step 3: Cross multiply
    20,086.10x = 27,718.36 × 11,133.52
  4. Step 4: Simplify right side
    20,086.10x = 308,602,915.43
  5. Step 5: Solve for x
    x = 308,602,915.43/20,086.10
  6. Step 6: Final answer
    x = 15,364.00

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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.