Home / 15,880.96-21,930.48-10,225.52

Finding the Fourth Proportional to 15,880.96, 21,930.48 and 10,225.52

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Solution

The fourth proportional to 15,880.96, 21,930.48 and 10,225.52 is: 14,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,880.96 : 21,930.48 = 10,225.52 : x
  2. Step 2: Convert to fraction form
    15,880.96/21,930.48 = 10,225.52/x
  3. Step 3: Cross multiply
    15,880.96x = 21,930.48 × 10,225.52
  4. Step 4: Simplify right side
    15,880.96x = 224,250,561.85
  5. Step 5: Solve for x
    x = 224,250,561.85/15,880.96
  6. Step 6: Final answer
    x = 14,120.72

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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.