Home / 31,280.88-46,991.88-18,165.36

Finding the Fourth Proportional to 31,280.88, 46,991.88 and 18,165.36

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Solution

The fourth proportional to 31,280.88, 46,991.88 and 18,165.36 is: 27,289.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.88 : 46,991.88 = 18,165.36 : x
  2. Step 2: Convert to fraction form
    31,280.88/46,991.88 = 18,165.36/x
  3. Step 3: Cross multiply
    31,280.88x = 46,991.88 × 18,165.36
  4. Step 4: Simplify right side
    31,280.88x = 853,624,417.28
  5. Step 5: Solve for x
    x = 853,624,417.28/31,280.88
  6. Step 6: Final answer
    x = 27,289.02

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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.