Home / 30,516.33-42,090.78-28,006.53

Finding the Fourth Proportional to 30,516.33, 42,090.78 and 28,006.53

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Solution

The fourth proportional to 30,516.33, 42,090.78 and 28,006.53 is: 38,629.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,516.33 : 42,090.78 = 28,006.53 : x
  2. Step 2: Convert to fraction form
    30,516.33/42,090.78 = 28,006.53/x
  3. Step 3: Cross multiply
    30,516.33x = 42,090.78 × 28,006.53
  4. Step 4: Simplify right side
    30,516.33x = 1,178,816,692.79
  5. Step 5: Solve for x
    x = 1,178,816,692.79/30,516.33
  6. Step 6: Final answer
    x = 38,629.05

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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.