Home / 23,121.37-31,907.51-12,510.98

Finding the Fourth Proportional to 23,121.37, 31,907.51 and 12,510.98

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Solution

The fourth proportional to 23,121.37, 31,907.51 and 12,510.98 is: 17,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,121.37 : 31,907.51 = 12,510.98 : x
  2. Step 2: Convert to fraction form
    23,121.37/31,907.51 = 12,510.98/x
  3. Step 3: Cross multiply
    23,121.37x = 31,907.51 × 12,510.98
  4. Step 4: Simplify right side
    23,121.37x = 399,194,219.46
  5. Step 5: Solve for x
    x = 399,194,219.46/23,121.37
  6. Step 6: Final answer
    x = 17,265.16

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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.