Home / 21,255.39-29,332.41-11,823.93

Finding the Fourth Proportional to 21,255.39, 29,332.41 and 11,823.93

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Solution

The fourth proportional to 21,255.39, 29,332.41 and 11,823.93 is: 16,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,255.39 : 29,332.41 = 11,823.93 : x
  2. Step 2: Convert to fraction form
    21,255.39/29,332.41 = 11,823.93/x
  3. Step 3: Cross multiply
    21,255.39x = 29,332.41 × 11,823.93
  4. Step 4: Simplify right side
    21,255.39x = 346,824,362.57
  5. Step 5: Solve for x
    x = 346,824,362.57/21,255.39
  6. Step 6: Final answer
    x = 16,317.01

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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.