Home / 19,805.60-27,330.72-10,851.50

Finding the Fourth Proportional to 19,805.60, 27,330.72 and 10,851.50

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Solution

The fourth proportional to 19,805.60, 27,330.72 and 10,851.50 is: 14,974.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.60 : 27,330.72 = 10,851.50 : x
  2. Step 2: Convert to fraction form
    19,805.60/27,330.72 = 10,851.50/x
  3. Step 3: Cross multiply
    19,805.60x = 27,330.72 × 10,851.50
  4. Step 4: Simplify right side
    19,805.60x = 296,579,308.08
  5. Step 5: Solve for x
    x = 296,579,308.08/19,805.60
  6. Step 6: Final answer
    x = 14,974.52

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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.