Home / 23,121.09-31,907.25-12,510.70

Finding the Fourth Proportional to 23,121.09, 31,907.25 and 12,510.70

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Solution

The fourth proportional to 23,121.09, 31,907.25 and 12,510.70 is: 17,264.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.09 : 31,907.25 = 12,510.70 : x
  2. Step 2: Convert to fraction form
    23,121.09/31,907.25 = 12,510.70/x
  3. Step 3: Cross multiply
    23,121.09x = 31,907.25 × 12,510.70
  4. Step 4: Simplify right side
    23,121.09x = 399,181,952.81
  5. Step 5: Solve for x
    x = 399,181,952.81/23,121.09
  6. Step 6: Final answer
    x = 17,264.84

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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.