Home / 20,382.58-28,115.01-14,725.63

Finding the Fourth Proportional to 20,382.58, 28,115.01 and 14,725.63

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Solution

The fourth proportional to 20,382.58, 28,115.01 and 14,725.63 is: 20,312.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,382.58 : 28,115.01 = 14,725.63 : x
  2. Step 2: Convert to fraction form
    20,382.58/28,115.01 = 14,725.63/x
  3. Step 3: Cross multiply
    20,382.58x = 28,115.01 × 14,725.63
  4. Step 4: Simplify right side
    20,382.58x = 414,011,234.71
  5. Step 5: Solve for x
    x = 414,011,234.71/20,382.58
  6. Step 6: Final answer
    x = 20,312.01

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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.