Home / 31,477.87-43,439.49-17,330.71

Finding the Fourth Proportional to 31,477.87, 43,439.49 and 17,330.71

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Solution

The fourth proportional to 31,477.87, 43,439.49 and 17,330.71 is: 23,916.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,477.87 : 43,439.49 = 17,330.71 : x
  2. Step 2: Convert to fraction form
    31,477.87/43,439.49 = 17,330.71/x
  3. Step 3: Cross multiply
    31,477.87x = 43,439.49 × 17,330.71
  4. Step 4: Simplify right side
    31,477.87x = 752,837,176.59
  5. Step 5: Solve for x
    x = 752,837,176.59/31,477.87
  6. Step 6: Final answer
    x = 23,916.40

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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.