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Finding the Fourth Proportional to 32,916.40, 49,309.80 and 19,729.60

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Solution

The fourth proportional to 32,916.40, 49,309.80 and 19,729.60 is: 29,555.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,916.40 : 49,309.80 = 19,729.60 : x
  2. Step 2: Convert to fraction form
    32,916.40/49,309.80 = 19,729.60/x
  3. Step 3: Cross multiply
    32,916.40x = 49,309.80 × 19,729.60
  4. Step 4: Simplify right side
    32,916.40x = 972,862,630.08
  5. Step 5: Solve for x
    x = 972,862,630.08/32,916.40
  6. Step 6: Final answer
    x = 29,555.56

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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.