Home / 21,477.71-29,629.52-13,925.95

Finding the Fourth Proportional to 21,477.71, 29,629.52 and 13,925.95

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Solution

The fourth proportional to 21,477.71, 29,629.52 and 13,925.95 is: 19,211.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.71 : 29,629.52 = 13,925.95 : x
  2. Step 2: Convert to fraction form
    21,477.71/29,629.52 = 13,925.95/x
  3. Step 3: Cross multiply
    21,477.71x = 29,629.52 × 13,925.95
  4. Step 4: Simplify right side
    21,477.71x = 412,619,245.06
  5. Step 5: Solve for x
    x = 412,619,245.06/21,477.71
  6. Step 6: Final answer
    x = 19,211.51

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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.