Home / 21,177.57-29,212.34-14,007.66

Finding the Fourth Proportional to 21,177.57, 29,212.34 and 14,007.66

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Solution

The fourth proportional to 21,177.57, 29,212.34 and 14,007.66 is: 19,322.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,177.57 : 29,212.34 = 14,007.66 : x
  2. Step 2: Convert to fraction form
    21,177.57/29,212.34 = 14,007.66/x
  3. Step 3: Cross multiply
    21,177.57x = 29,212.34 × 14,007.66
  4. Step 4: Simplify right side
    21,177.57x = 409,196,526.52
  5. Step 5: Solve for x
    x = 409,196,526.52/21,177.57
  6. Step 6: Final answer
    x = 19,322.17

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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.