Home / 31,121.96-46,685.84-12,397.46

Finding the Fourth Proportional to 31,121.96, 46,685.84 and 12,397.46

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Solution

The fourth proportional to 31,121.96, 46,685.84 and 12,397.46 is: 18,597.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,121.96 : 46,685.84 = 12,397.46 : x
  2. Step 2: Convert to fraction form
    31,121.96/46,685.84 = 12,397.46/x
  3. Step 3: Cross multiply
    31,121.96x = 46,685.84 × 12,397.46
  4. Step 4: Simplify right side
    31,121.96x = 578,785,538.55
  5. Step 5: Solve for x
    x = 578,785,538.55/31,121.96
  6. Step 6: Final answer
    x = 18,597.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.