Home / 20,701.84-31,037.64-13,314.64

Finding the Fourth Proportional to 20,701.84, 31,037.64 and 13,314.64

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Solution

The fourth proportional to 20,701.84, 31,037.64 and 13,314.64 is: 19,962.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.84 : 31,037.64 = 13,314.64 : x
  2. Step 2: Convert to fraction form
    20,701.84/31,037.64 = 13,314.64/x
  3. Step 3: Cross multiply
    20,701.84x = 31,037.64 × 13,314.64
  4. Step 4: Simplify right side
    20,701.84x = 413,255,003.05
  5. Step 5: Solve for x
    x = 413,255,003.05/20,701.84
  6. Step 6: Final answer
    x = 19,962.24

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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.