Home / 21,827.83-32,756.07-11,974

Finding the Fourth Proportional to 21,827.83, 32,756.07 and 11,974

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Solution

The fourth proportional to 21,827.83, 32,756.07 and 11,974 is: 17,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,827.83 : 32,756.07 = 11,974 : x
  2. Step 2: Convert to fraction form
    21,827.83/32,756.07 = 11,974/x
  3. Step 3: Cross multiply
    21,827.83x = 32,756.07 × 11,974
  4. Step 4: Simplify right side
    21,827.83x = 392,221,182.18
  5. Step 5: Solve for x
    x = 392,221,182.18/21,827.83
  6. Step 6: Final answer
    x = 17,968.86

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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.