Home / 23,118.21-34,510.05-20,315.70

Finding the Fourth Proportional to 23,118.21, 34,510.05 and 20,315.70

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Solution

The fourth proportional to 23,118.21, 34,510.05 and 20,315.70 is: 30,326.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.21 : 34,510.05 = 20,315.70 : x
  2. Step 2: Convert to fraction form
    23,118.21/34,510.05 = 20,315.70/x
  3. Step 3: Cross multiply
    23,118.21x = 34,510.05 × 20,315.70
  4. Step 4: Simplify right side
    23,118.21x = 701,095,822.79
  5. Step 5: Solve for x
    x = 701,095,822.79/23,118.21
  6. Step 6: Final answer
    x = 30,326.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.