Home / 30,123.33-45,184.31-10,400.03

Finding the Fourth Proportional to 30,123.33, 45,184.31 and 10,400.03

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Solution

The fourth proportional to 30,123.33, 45,184.31 and 10,400.03 is: 15,599.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.33 : 45,184.31 = 10,400.03 : x
  2. Step 2: Convert to fraction form
    30,123.33/45,184.31 = 10,400.03/x
  3. Step 3: Cross multiply
    30,123.33x = 45,184.31 × 10,400.03
  4. Step 4: Simplify right side
    30,123.33x = 469,918,179.53
  5. Step 5: Solve for x
    x = 469,918,179.53/30,123.33
  6. Step 6: Final answer
    x = 15,599.81

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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.