Home / 31,271.06-43,154.09-16,931.02

Finding the Fourth Proportional to 31,271.06, 43,154.09 and 16,931.02

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Solution

The fourth proportional to 31,271.06, 43,154.09 and 16,931.02 is: 23,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,271.06 : 43,154.09 = 16,931.02 : x
  2. Step 2: Convert to fraction form
    31,271.06/43,154.09 = 16,931.02/x
  3. Step 3: Cross multiply
    31,271.06x = 43,154.09 × 16,931.02
  4. Step 4: Simplify right side
    31,271.06x = 730,642,568.33
  5. Step 5: Solve for x
    x = 730,642,568.33/31,271.06
  6. Step 6: Final answer
    x = 23,364.81

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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.