Home / 21,813.64-32,678.70-17,886.28

Finding the Fourth Proportional to 21,813.64, 32,678.70 and 17,886.28

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Solution

The fourth proportional to 21,813.64, 32,678.70 and 17,886.28 is: 26,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,813.64 : 32,678.70 = 17,886.28 : x
  2. Step 2: Convert to fraction form
    21,813.64/32,678.70 = 17,886.28/x
  3. Step 3: Cross multiply
    21,813.64x = 32,678.70 × 17,886.28
  4. Step 4: Simplify right side
    21,813.64x = 584,500,378.24
  5. Step 5: Solve for x
    x = 584,500,378.24/21,813.64
  6. Step 6: Final answer
    x = 26,795.18

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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.