Home / 55,338.45-83,007.96-13,785.45

Finding the Fourth Proportional to 55,338.45, 83,007.96 and 13,785.45

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Solution

The fourth proportional to 55,338.45, 83,007.96 and 13,785.45 is: 20,678.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.45 : 83,007.96 = 13,785.45 : x
  2. Step 2: Convert to fraction form
    55,338.45/83,007.96 = 13,785.45/x
  3. Step 3: Cross multiply
    55,338.45x = 83,007.96 × 13,785.45
  4. Step 4: Simplify right side
    55,338.45x = 1,144,302,082.18
  5. Step 5: Solve for x
    x = 1,144,302,082.18/55,338.45
  6. Step 6: Final answer
    x = 20,678.25

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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.