Home / 34,654.20-51,981.30-30,280.20

Finding the Fourth Proportional to 34,654.20, 51,981.30 and 30,280.20

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Solution

The fourth proportional to 34,654.20, 51,981.30 and 30,280.20 is: 45,420.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,654.20 : 51,981.30 = 30,280.20 : x
  2. Step 2: Convert to fraction form
    34,654.20/51,981.30 = 30,280.20/x
  3. Step 3: Cross multiply
    34,654.20x = 51,981.30 × 30,280.20
  4. Step 4: Simplify right side
    34,654.20x = 1,574,004,160.26
  5. Step 5: Solve for x
    x = 1,574,004,160.26/34,654.20
  6. Step 6: Final answer
    x = 45,420.30

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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.