Home / 30,153.28-45,235.04-10,427.22

Finding the Fourth Proportional to 30,153.28, 45,235.04 and 10,427.22

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Solution

The fourth proportional to 30,153.28, 45,235.04 and 10,427.22 is: 15,642.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,153.28 : 45,235.04 = 10,427.22 : x
  2. Step 2: Convert to fraction form
    30,153.28/45,235.04 = 10,427.22/x
  3. Step 3: Cross multiply
    30,153.28x = 45,235.04 × 10,427.22
  4. Step 4: Simplify right side
    30,153.28x = 471,675,713.79
  5. Step 5: Solve for x
    x = 471,675,713.79/30,153.28
  6. Step 6: Final answer
    x = 15,642.60

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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.