Home / 21,043.85-31,565.78-14,037.55

Finding the Fourth Proportional to 21,043.85, 31,565.78 and 14,037.55

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Solution

The fourth proportional to 21,043.85, 31,565.78 and 14,037.55 is: 21,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.85 : 31,565.78 = 14,037.55 : x
  2. Step 2: Convert to fraction form
    21,043.85/31,565.78 = 14,037.55/x
  3. Step 3: Cross multiply
    21,043.85x = 31,565.78 × 14,037.55
  4. Step 4: Simplify right side
    21,043.85x = 443,106,250.13
  5. Step 5: Solve for x
    x = 443,106,250.13/21,043.85
  6. Step 6: Final answer
    x = 21,056.33

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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.