Home / 20,799.36-31,181.76-14,541.48

Finding the Fourth Proportional to 20,799.36, 31,181.76 and 14,541.48

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Solution

The fourth proportional to 20,799.36, 31,181.76 and 14,541.48 is: 21,800.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.36 : 31,181.76 = 14,541.48 : x
  2. Step 2: Convert to fraction form
    20,799.36/31,181.76 = 14,541.48/x
  3. Step 3: Cross multiply
    20,799.36x = 31,181.76 × 14,541.48
  4. Step 4: Simplify right side
    20,799.36x = 453,428,939.40
  5. Step 5: Solve for x
    x = 453,428,939.40/20,799.36
  6. Step 6: Final answer
    x = 21,800.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.