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Finding the Fourth Proportional to 32,929.40, 49,410.30 and 18,900.20

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Solution

The fourth proportional to 32,929.40, 49,410.30 and 18,900.20 is: 28,359.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,929.40 : 49,410.30 = 18,900.20 : x
  2. Step 2: Convert to fraction form
    32,929.40/49,410.30 = 18,900.20/x
  3. Step 3: Cross multiply
    32,929.40x = 49,410.30 × 18,900.20
  4. Step 4: Simplify right side
    32,929.40x = 933,864,552.06
  5. Step 5: Solve for x
    x = 933,864,552.06/32,929.40
  6. Step 6: Final answer
    x = 28,359.60

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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.