Home / 28,464.21-42,699.96-10,931.76

Finding the Fourth Proportional to 28,464.21, 42,699.96 and 10,931.76

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Solution

The fourth proportional to 28,464.21, 42,699.96 and 10,931.76 is: 16,399.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,464.21 : 42,699.96 = 10,931.76 : x
  2. Step 2: Convert to fraction form
    28,464.21/42,699.96 = 10,931.76/x
  3. Step 3: Cross multiply
    28,464.21x = 42,699.96 × 10,931.76
  4. Step 4: Simplify right side
    28,464.21x = 466,785,714.73
  5. Step 5: Solve for x
    x = 466,785,714.73/28,464.21
  6. Step 6: Final answer
    x = 16,399.04

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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.