Home / 21,177.33-29,225.93-12,796.53

Finding the Fourth Proportional to 21,177.33, 29,225.93 and 12,796.53

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Solution

The fourth proportional to 21,177.33, 29,225.93 and 12,796.53 is: 17,659.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.33 : 29,225.93 = 12,796.53 : x
  2. Step 2: Convert to fraction form
    21,177.33/29,225.93 = 12,796.53/x
  3. Step 3: Cross multiply
    21,177.33x = 29,225.93 × 12,796.53
  4. Step 4: Simplify right side
    21,177.33x = 373,990,426.04
  5. Step 5: Solve for x
    x = 373,990,426.04/21,177.33
  6. Step 6: Final answer
    x = 17,659.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.