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Finding the Fourth Proportional to 22,762.40, 34,143.60 and 19,421.60

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Solution

The fourth proportional to 22,762.40, 34,143.60 and 19,421.60 is: 29,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,762.40 : 34,143.60 = 19,421.60 : x
  2. Step 2: Convert to fraction form
    22,762.40/34,143.60 = 19,421.60/x
  3. Step 3: Cross multiply
    22,762.40x = 34,143.60 × 19,421.60
  4. Step 4: Simplify right side
    22,762.40x = 663,123,341.76
  5. Step 5: Solve for x
    x = 663,123,341.76/22,762.40
  6. Step 6: Final answer
    x = 29,132.40

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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.