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Finding the Fourth Proportional to 30,246.40, 45,337.20 and 11,519.20

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Solution

The fourth proportional to 30,246.40, 45,337.20 and 11,519.20 is: 17,266.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,246.40 : 45,337.20 = 11,519.20 : x
  2. Step 2: Convert to fraction form
    30,246.40/45,337.20 = 11,519.20/x
  3. Step 3: Cross multiply
    30,246.40x = 45,337.20 × 11,519.20
  4. Step 4: Simplify right side
    30,246.40x = 522,248,274.24
  5. Step 5: Solve for x
    x = 522,248,274.24/30,246.40
  6. Step 6: Final answer
    x = 17,266.46

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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.