Home / 30,199.30-45,277.06-15,215.64

Finding the Fourth Proportional to 30,199.30, 45,277.06 and 15,215.64

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Solution

The fourth proportional to 30,199.30, 45,277.06 and 15,215.64 is: 22,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,199.30 : 45,277.06 = 15,215.64 : x
  2. Step 2: Convert to fraction form
    30,199.30/45,277.06 = 15,215.64/x
  3. Step 3: Cross multiply
    30,199.30x = 45,277.06 × 15,215.64
  4. Step 4: Simplify right side
    30,199.30x = 688,919,445.22
  5. Step 5: Solve for x
    x = 688,919,445.22/30,199.30
  6. Step 6: Final answer
    x = 22,812.43

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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.