Home / 19,020.38-28,530.54-7,325.40

Finding the Fourth Proportional to 19,020.38, 28,530.54 and 7,325.40

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Solution

The fourth proportional to 19,020.38, 28,530.54 and 7,325.40 is: 10,988.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,020.38 : 28,530.54 = 7,325.40 : x
  2. Step 2: Convert to fraction form
    19,020.38/28,530.54 = 7,325.40/x
  3. Step 3: Cross multiply
    19,020.38x = 28,530.54 × 7,325.40
  4. Step 4: Simplify right side
    19,020.38x = 208,997,617.72
  5. Step 5: Solve for x
    x = 208,997,617.72/19,020.38
  6. Step 6: Final answer
    x = 10,988.09

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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.