Home / 20,260.53-27,956.75-11,307.20

Finding the Fourth Proportional to 20,260.53, 27,956.75 and 11,307.20

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Solution

The fourth proportional to 20,260.53, 27,956.75 and 11,307.20 is: 15,602.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.53 : 27,956.75 = 11,307.20 : x
  2. Step 2: Convert to fraction form
    20,260.53/27,956.75 = 11,307.20/x
  3. Step 3: Cross multiply
    20,260.53x = 27,956.75 × 11,307.20
  4. Step 4: Simplify right side
    20,260.53x = 316,112,367.28
  5. Step 5: Solve for x
    x = 316,112,367.28/20,260.53
  6. Step 6: Final answer
    x = 15,602.37

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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.