Home / 36,903.78-50,925.60-20,988.09

Finding the Fourth Proportional to 36,903.78, 50,925.60 and 20,988.09

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Solution

The fourth proportional to 36,903.78, 50,925.60 and 20,988.09 is: 28,962.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,903.78 : 50,925.60 = 20,988.09 : x
  2. Step 2: Convert to fraction form
    36,903.78/50,925.60 = 20,988.09/x
  3. Step 3: Cross multiply
    36,903.78x = 50,925.60 × 20,988.09
  4. Step 4: Simplify right side
    36,903.78x = 1,068,831,076.10
  5. Step 5: Solve for x
    x = 1,068,831,076.10/36,903.78
  6. Step 6: Final answer
    x = 28,962.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.