Home / 31,277.59-43,146.93-21,202.63

Finding the Fourth Proportional to 31,277.59, 43,146.93 and 21,202.63

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Solution

The fourth proportional to 31,277.59, 43,146.93 and 21,202.63 is: 29,248.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.59 : 43,146.93 = 21,202.63 : x
  2. Step 2: Convert to fraction form
    31,277.59/43,146.93 = 21,202.63/x
  3. Step 3: Cross multiply
    31,277.59x = 43,146.93 × 21,202.63
  4. Step 4: Simplify right side
    31,277.59x = 914,828,392.43
  5. Step 5: Solve for x
    x = 914,828,392.43/31,277.59
  6. Step 6: Final answer
    x = 29,248.69

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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.