Home / 29,315.35-40,455.09-15,886.95

Finding the Fourth Proportional to 29,315.35, 40,455.09 and 15,886.95

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Solution

The fourth proportional to 29,315.35, 40,455.09 and 15,886.95 is: 21,923.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,315.35 : 40,455.09 = 15,886.95 : x
  2. Step 2: Convert to fraction form
    29,315.35/40,455.09 = 15,886.95/x
  3. Step 3: Cross multiply
    29,315.35x = 40,455.09 × 15,886.95
  4. Step 4: Simplify right side
    29,315.35x = 642,707,992.08
  5. Step 5: Solve for x
    x = 642,707,992.08/29,315.35
  6. Step 6: Final answer
    x = 21,923.94

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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.