Home / 21,807.35-30,063.90-14,722.55

Finding the Fourth Proportional to 21,807.35, 30,063.90 and 14,722.55

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Solution

The fourth proportional to 21,807.35, 30,063.90 and 14,722.55 is: 20,296.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.35 : 30,063.90 = 14,722.55 : x
  2. Step 2: Convert to fraction form
    21,807.35/30,063.90 = 14,722.55/x
  3. Step 3: Cross multiply
    21,807.35x = 30,063.90 × 14,722.55
  4. Step 4: Simplify right side
    21,807.35x = 442,617,120.63
  5. Step 5: Solve for x
    x = 442,617,120.63/21,807.35
  6. Step 6: Final answer
    x = 20,296.70

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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.