Home / 30,028.30-45,043.35-10,306.57

Finding the Fourth Proportional to 30,028.30, 45,043.35 and 10,306.57

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Solution

The fourth proportional to 30,028.30, 45,043.35 and 10,306.57 is: 15,460.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,028.30 : 45,043.35 = 10,306.57 : x
  2. Step 2: Convert to fraction form
    30,028.30/45,043.35 = 10,306.57/x
  3. Step 3: Cross multiply
    30,028.30x = 45,043.35 × 10,306.57
  4. Step 4: Simplify right side
    30,028.30x = 464,242,439.81
  5. Step 5: Solve for x
    x = 464,242,439.81/30,028.30
  6. Step 6: Final answer
    x = 15,460.16

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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.