Home / 35,501.77-48,990.78-20,383.81

Finding the Fourth Proportional to 35,501.77, 48,990.78 and 20,383.81

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Solution

The fourth proportional to 35,501.77, 48,990.78 and 20,383.81 is: 28,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,501.77 : 48,990.78 = 20,383.81 : x
  2. Step 2: Convert to fraction form
    35,501.77/48,990.78 = 20,383.81/x
  3. Step 3: Cross multiply
    35,501.77x = 48,990.78 × 20,383.81
  4. Step 4: Simplify right side
    35,501.77x = 998,618,751.27
  5. Step 5: Solve for x
    x = 998,618,751.27/35,501.77
  6. Step 6: Final answer
    x = 28,128.70

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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.