Home / 42,737.76-64,119.60-20,544.84

Finding the Fourth Proportional to 42,737.76, 64,119.60 and 20,544.84

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Solution

The fourth proportional to 42,737.76, 64,119.60 and 20,544.84 is: 30,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,737.76 : 64,119.60 = 20,544.84 : x
  2. Step 2: Convert to fraction form
    42,737.76/64,119.60 = 20,544.84/x
  3. Step 3: Cross multiply
    42,737.76x = 64,119.60 × 20,544.84
  4. Step 4: Simplify right side
    42,737.76x = 1,317,326,922.86
  5. Step 5: Solve for x
    x = 1,317,326,922.86/42,737.76
  6. Step 6: Final answer
    x = 30,823.49

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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.