Home / 20,031.84-30,052.80-7,557.12

Finding the Fourth Proportional to 20,031.84, 30,052.80 and 7,557.12

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Solution

The fourth proportional to 20,031.84, 30,052.80 and 7,557.12 is: 11,337.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,031.84 : 30,052.80 = 7,557.12 : x
  2. Step 2: Convert to fraction form
    20,031.84/30,052.80 = 7,557.12/x
  3. Step 3: Cross multiply
    20,031.84x = 30,052.80 × 7,557.12
  4. Step 4: Simplify right side
    20,031.84x = 227,112,615.94
  5. Step 5: Solve for x
    x = 227,112,615.94/20,031.84
  6. Step 6: Final answer
    x = 11,337.58

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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.