Home / 20,260.28-27,955.99-11,307.35

Finding the Fourth Proportional to 20,260.28, 27,955.99 and 11,307.35

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Solution

The fourth proportional to 20,260.28, 27,955.99 and 11,307.35 is: 15,602.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.28 : 27,955.99 = 11,307.35 : x
  2. Step 2: Convert to fraction form
    20,260.28/27,955.99 = 11,307.35/x
  3. Step 3: Cross multiply
    20,260.28x = 27,955.99 × 11,307.35
  4. Step 4: Simplify right side
    20,260.28x = 316,108,163.53
  5. Step 5: Solve for x
    x = 316,108,163.53/20,260.28
  6. Step 6: Final answer
    x = 15,602.36

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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.