Home / 31,616.10-47,410.28-11,880.80

Finding the Fourth Proportional to 31,616.10, 47,410.28 and 11,880.80

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Solution

The fourth proportional to 31,616.10, 47,410.28 and 11,880.80 is: 17,815.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,616.10 : 47,410.28 = 11,880.80 : x
  2. Step 2: Convert to fraction form
    31,616.10/47,410.28 = 11,880.80/x
  3. Step 3: Cross multiply
    31,616.10x = 47,410.28 × 11,880.80
  4. Step 4: Simplify right side
    31,616.10x = 563,272,054.62
  5. Step 5: Solve for x
    x = 563,272,054.62/31,616.10
  6. Step 6: Final answer
    x = 17,815.99

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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.