Home / 21,753.60-30,030.24-16,378.08

Finding the Fourth Proportional to 21,753.60, 30,030.24 and 16,378.08

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Solution

The fourth proportional to 21,753.60, 30,030.24 and 16,378.08 is: 22,609.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.60 : 30,030.24 = 16,378.08 : x
  2. Step 2: Convert to fraction form
    21,753.60/30,030.24 = 16,378.08/x
  3. Step 3: Cross multiply
    21,753.60x = 30,030.24 × 16,378.08
  4. Step 4: Simplify right side
    21,753.60x = 491,837,673.14
  5. Step 5: Solve for x
    x = 491,837,673.14/21,753.60
  6. Step 6: Final answer
    x = 22,609.48

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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.