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Finding the Fourth Proportional to 34,291.40, 51,404.70 and 20,262.20

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Solution

The fourth proportional to 34,291.40, 51,404.70 and 20,262.20 is: 30,374.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,291.40 : 51,404.70 = 20,262.20 : x
  2. Step 2: Convert to fraction form
    34,291.40/51,404.70 = 20,262.20/x
  3. Step 3: Cross multiply
    34,291.40x = 51,404.70 × 20,262.20
  4. Step 4: Simplify right side
    34,291.40x = 1,041,572,312.34
  5. Step 5: Solve for x
    x = 1,041,572,312.34/34,291.40
  6. Step 6: Final answer
    x = 30,374.16

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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.