Home / 42,768.21-64,146.23-14,687.81

Finding the Fourth Proportional to 42,768.21, 64,146.23 and 14,687.81

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Solution

The fourth proportional to 42,768.21, 64,146.23 and 14,687.81 is: 22,029.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768.21 : 64,146.23 = 14,687.81 : x
  2. Step 2: Convert to fraction form
    42,768.21/64,146.23 = 14,687.81/x
  3. Step 3: Cross multiply
    42,768.21x = 64,146.23 × 14,687.81
  4. Step 4: Simplify right side
    42,768.21x = 942,167,244.29
  5. Step 5: Solve for x
    x = 942,167,244.29/42,768.21
  6. Step 6: Final answer
    x = 22,029.62

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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.