Home / 21,999.28-30,246.59-19,586.29

Finding the Fourth Proportional to 21,999.28, 30,246.59 and 19,586.29

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Solution

The fourth proportional to 21,999.28, 30,246.59 and 19,586.29 is: 26,928.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,999.28 : 30,246.59 = 19,586.29 : x
  2. Step 2: Convert to fraction form
    21,999.28/30,246.59 = 19,586.29/x
  3. Step 3: Cross multiply
    21,999.28x = 30,246.59 × 19,586.29
  4. Step 4: Simplify right side
    21,999.28x = 592,418,483.25
  5. Step 5: Solve for x
    x = 592,418,483.25/21,999.28
  6. Step 6: Final answer
    x = 26,928.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.