Home / 21,925.84-30,260.24-21,236.94

Finding the Fourth Proportional to 21,925.84, 30,260.24 and 21,236.94

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Solution

The fourth proportional to 21,925.84, 30,260.24 and 21,236.94 is: 29,309.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,925.84 : 30,260.24 = 21,236.94 : x
  2. Step 2: Convert to fraction form
    21,925.84/30,260.24 = 21,236.94/x
  3. Step 3: Cross multiply
    21,925.84x = 30,260.24 × 21,236.94
  4. Step 4: Simplify right side
    21,925.84x = 642,634,901.27
  5. Step 5: Solve for x
    x = 642,634,901.27/21,925.84
  6. Step 6: Final answer
    x = 29,309.48

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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.