Home / 20,992.02-31,482.55-9,895.76

Finding the Fourth Proportional to 20,992.02, 31,482.55 and 9,895.76

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Solution

The fourth proportional to 20,992.02, 31,482.55 and 9,895.76 is: 14,841.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,992.02 : 31,482.55 = 9,895.76 : x
  2. Step 2: Convert to fraction form
    20,992.02/31,482.55 = 9,895.76/x
  3. Step 3: Cross multiply
    20,992.02x = 31,482.55 × 9,895.76
  4. Step 4: Simplify right side
    20,992.02x = 311,543,758.99
  5. Step 5: Solve for x
    x = 311,543,758.99/20,992.02
  6. Step 6: Final answer
    x = 14,841.06

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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.