Home / 20,795.08-31,206.12-10,931.44

Finding the Fourth Proportional to 20,795.08, 31,206.12 and 10,931.44

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Solution

The fourth proportional to 20,795.08, 31,206.12 and 10,931.44 is: 16,404.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,795.08 : 31,206.12 = 10,931.44 : x
  2. Step 2: Convert to fraction form
    20,795.08/31,206.12 = 10,931.44/x
  3. Step 3: Cross multiply
    20,795.08x = 31,206.12 × 10,931.44
  4. Step 4: Simplify right side
    20,795.08x = 341,127,828.41
  5. Step 5: Solve for x
    x = 341,127,828.41/20,795.08
  6. Step 6: Final answer
    x = 16,404.26

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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.