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Finding the Fourth Proportional to 34,341.20, 51,487.20 and 13,263.20

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Solution

The fourth proportional to 34,341.20, 51,487.20 and 13,263.20 is: 19,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,341.20 : 51,487.20 = 13,263.20 : x
  2. Step 2: Convert to fraction form
    34,341.20/51,487.20 = 13,263.20/x
  3. Step 3: Cross multiply
    34,341.20x = 51,487.20 × 13,263.20
  4. Step 4: Simplify right side
    34,341.20x = 682,885,031.04
  5. Step 5: Solve for x
    x = 682,885,031.04/34,341.20
  6. Step 6: Final answer
    x = 19,885.30

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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.