Home / 30,278.51-45,424.68-9,221.54

Finding the Fourth Proportional to 30,278.51, 45,424.68 and 9,221.54

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Solution

The fourth proportional to 30,278.51, 45,424.68 and 9,221.54 is: 13,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.51 : 45,424.68 = 9,221.54 : x
  2. Step 2: Convert to fraction form
    30,278.51/45,424.68 = 9,221.54/x
  3. Step 3: Cross multiply
    30,278.51x = 45,424.68 × 9,221.54
  4. Step 4: Simplify right side
    30,278.51x = 418,885,421.53
  5. Step 5: Solve for x
    x = 418,885,421.53/30,278.51
  6. Step 6: Final answer
    x = 13,834.41

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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.