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Finding the Fourth Proportional to 32,988.60, 49,493.76 and 21,938.76

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Solution

The fourth proportional to 32,988.60, 49,493.76 and 21,938.76 is: 32,915.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,988.60 : 49,493.76 = 21,938.76 : x
  2. Step 2: Convert to fraction form
    32,988.60/49,493.76 = 21,938.76/x
  3. Step 3: Cross multiply
    32,988.60x = 49,493.76 × 21,938.76
  4. Step 4: Simplify right side
    32,988.60x = 1,085,831,722.14
  5. Step 5: Solve for x
    x = 1,085,831,722.14/32,988.60
  6. Step 6: Final answer
    x = 32,915.36

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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.