Home / 21,816.32-30,147.36-17,835.92

Finding the Fourth Proportional to 21,816.32, 30,147.36 and 17,835.92

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Solution

The fourth proportional to 21,816.32, 30,147.36 and 17,835.92 is: 24,646.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,816.32 : 30,147.36 = 17,835.92 : x
  2. Step 2: Convert to fraction form
    21,816.32/30,147.36 = 17,835.92/x
  3. Step 3: Cross multiply
    21,816.32x = 30,147.36 × 17,835.92
  4. Step 4: Simplify right side
    21,816.32x = 537,705,901.17
  5. Step 5: Solve for x
    x = 537,705,901.17/21,816.32
  6. Step 6: Final answer
    x = 24,646.96

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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.