Home / 30,290.85-45,440.07-10,028.43

Finding the Fourth Proportional to 30,290.85, 45,440.07 and 10,028.43

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Solution

The fourth proportional to 30,290.85, 45,440.07 and 10,028.43 is: 15,043.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,290.85 : 45,440.07 = 10,028.43 : x
  2. Step 2: Convert to fraction form
    30,290.85/45,440.07 = 10,028.43/x
  3. Step 3: Cross multiply
    30,290.85x = 45,440.07 × 10,028.43
  4. Step 4: Simplify right side
    30,290.85x = 455,692,561.19
  5. Step 5: Solve for x
    x = 455,692,561.19/30,290.85
  6. Step 6: Final answer
    x = 15,043.90

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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.