Home / 30,219.62-45,334.28-10,503.81

Finding the Fourth Proportional to 30,219.62, 45,334.28 and 10,503.81

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Solution

The fourth proportional to 30,219.62, 45,334.28 and 10,503.81 is: 15,757.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,219.62 : 45,334.28 = 10,503.81 : x
  2. Step 2: Convert to fraction form
    30,219.62/45,334.28 = 10,503.81/x
  3. Step 3: Cross multiply
    30,219.62x = 45,334.28 × 10,503.81
  4. Step 4: Simplify right side
    30,219.62x = 476,182,689.87
  5. Step 5: Solve for x
    x = 476,182,689.87/30,219.62
  6. Step 6: Final answer
    x = 15,757.40

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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.