Home / 42,857.85-64,303.68-13,277.99

Finding the Fourth Proportional to 42,857.85, 64,303.68 and 13,277.99

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Solution

The fourth proportional to 42,857.85, 64,303.68 and 13,277.99 is: 19,922.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,857.85 : 64,303.68 = 13,277.99 : x
  2. Step 2: Convert to fraction form
    42,857.85/64,303.68 = 13,277.99/x
  3. Step 3: Cross multiply
    42,857.85x = 64,303.68 × 13,277.99
  4. Step 4: Simplify right side
    42,857.85x = 853,823,298.48
  5. Step 5: Solve for x
    x = 853,823,298.48/42,857.85
  6. Step 6: Final answer
    x = 19,922.21

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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.