Home / 42,767.12-64,134.73-14,679.21

Finding the Fourth Proportional to 42,767.12, 64,134.73 and 14,679.21

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Solution

The fourth proportional to 42,767.12, 64,134.73 and 14,679.21 is: 22,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,767.12 : 64,134.73 = 14,679.21 : x
  2. Step 2: Convert to fraction form
    42,767.12/64,134.73 = 14,679.21/x
  3. Step 3: Cross multiply
    42,767.12x = 64,134.73 × 14,679.21
  4. Step 4: Simplify right side
    42,767.12x = 941,447,169.96
  5. Step 5: Solve for x
    x = 941,447,169.96/42,767.12
  6. Step 6: Final answer
    x = 22,013.34

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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.