Home / 20,564.07-28,378.94-12,610.68

Finding the Fourth Proportional to 20,564.07, 28,378.94 and 12,610.68

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Solution

The fourth proportional to 20,564.07, 28,378.94 and 12,610.68 is: 17,403.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,564.07 : 28,378.94 = 12,610.68 : x
  2. Step 2: Convert to fraction form
    20,564.07/28,378.94 = 12,610.68/x
  3. Step 3: Cross multiply
    20,564.07x = 28,378.94 × 12,610.68
  4. Step 4: Simplify right side
    20,564.07x = 357,877,668.03
  5. Step 5: Solve for x
    x = 357,877,668.03/20,564.07
  6. Step 6: Final answer
    x = 17,403.06

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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.