Home / 21,835.04-32,767.71-9,990.27

Finding the Fourth Proportional to 21,835.04, 32,767.71 and 9,990.27

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Solution

The fourth proportional to 21,835.04, 32,767.71 and 9,990.27 is: 14,992.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,835.04 : 32,767.71 = 9,990.27 : x
  2. Step 2: Convert to fraction form
    21,835.04/32,767.71 = 9,990.27/x
  3. Step 3: Cross multiply
    21,835.04x = 32,767.71 × 9,990.27
  4. Step 4: Simplify right side
    21,835.04x = 327,358,455.25
  5. Step 5: Solve for x
    x = 327,358,455.25/21,835.04
  6. Step 6: Final answer
    x = 14,992.34

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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.