Home / 31,287.41-46,931.27-7,913.87

Finding the Fourth Proportional to 31,287.41, 46,931.27 and 7,913.87

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Solution

The fourth proportional to 31,287.41, 46,931.27 and 7,913.87 is: 11,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.41 : 46,931.27 = 7,913.87 : x
  2. Step 2: Convert to fraction form
    31,287.41/46,931.27 = 7,913.87/x
  3. Step 3: Cross multiply
    31,287.41x = 46,931.27 × 7,913.87
  4. Step 4: Simplify right side
    31,287.41x = 371,407,695.49
  5. Step 5: Solve for x
    x = 371,407,695.49/31,287.41
  6. Step 6: Final answer
    x = 11,870.84

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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.