Home / 18,421.36-27,632.40-4,570

Finding the Fourth Proportional to 18,421.36, 27,632.40 and 4,570

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Solution

The fourth proportional to 18,421.36, 27,632.40 and 4,570 is: 6,855.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.36 : 27,632.40 = 4,570 : x
  2. Step 2: Convert to fraction form
    18,421.36/27,632.40 = 4,570/x
  3. Step 3: Cross multiply
    18,421.36x = 27,632.40 × 4,570
  4. Step 4: Simplify right side
    18,421.36x = 126,280,068
  5. Step 5: Solve for x
    x = 126,280,068/18,421.36
  6. Step 6: Final answer
    x = 6,855.09

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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.