Home / 13,715.03-20,570.91-3,582.74

Finding the Fourth Proportional to 13,715.03, 20,570.91 and 3,582.74

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Solution

The fourth proportional to 13,715.03, 20,570.91 and 3,582.74 is: 5,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.03 : 20,570.91 = 3,582.74 : x
  2. Step 2: Convert to fraction form
    13,715.03/20,570.91 = 3,582.74/x
  3. Step 3: Cross multiply
    13,715.03x = 20,570.91 × 3,582.74
  4. Step 4: Simplify right side
    13,715.03x = 73,700,222.09
  5. Step 5: Solve for x
    x = 73,700,222.09/13,715.03
  6. Step 6: Final answer
    x = 5,373.68

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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.