Home / 21,175.32-31,771.80-9,323.04

Finding the Fourth Proportional to 21,175.32, 31,771.80 and 9,323.04

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Solution

The fourth proportional to 21,175.32, 31,771.80 and 9,323.04 is: 13,988.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,175.32 : 31,771.80 = 9,323.04 : x
  2. Step 2: Convert to fraction form
    21,175.32/31,771.80 = 9,323.04/x
  3. Step 3: Cross multiply
    21,175.32x = 31,771.80 × 9,323.04
  4. Step 4: Simplify right side
    21,175.32x = 296,209,762.27
  5. Step 5: Solve for x
    x = 296,209,762.27/21,175.32
  6. Step 6: Final answer
    x = 13,988.44

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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.