Home / 20,314.80-28,037.07-11,364.16

Finding the Fourth Proportional to 20,314.80, 28,037.07 and 11,364.16

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Solution

The fourth proportional to 20,314.80, 28,037.07 and 11,364.16 is: 15,684.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,314.80 : 28,037.07 = 11,364.16 : x
  2. Step 2: Convert to fraction form
    20,314.80/28,037.07 = 11,364.16/x
  3. Step 3: Cross multiply
    20,314.80x = 28,037.07 × 11,364.16
  4. Step 4: Simplify right side
    20,314.80x = 318,617,749.41
  5. Step 5: Solve for x
    x = 318,617,749.41/20,314.80
  6. Step 6: Final answer
    x = 15,684.02

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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.