Home / 15,913.14-21,973.05-14,231.58

Finding the Fourth Proportional to 15,913.14, 21,973.05 and 14,231.58

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Solution

The fourth proportional to 15,913.14, 21,973.05 and 14,231.58 is: 19,651.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.14 : 21,973.05 = 14,231.58 : x
  2. Step 2: Convert to fraction form
    15,913.14/21,973.05 = 14,231.58/x
  3. Step 3: Cross multiply
    15,913.14x = 21,973.05 × 14,231.58
  4. Step 4: Simplify right side
    15,913.14x = 312,711,218.92
  5. Step 5: Solve for x
    x = 312,711,218.92/15,913.14
  6. Step 6: Final answer
    x = 19,651.13

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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.