Home / 28,497.09-39,325.77-15,751.13

Finding the Fourth Proportional to 28,497.09, 39,325.77 and 15,751.13

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Solution

The fourth proportional to 28,497.09, 39,325.77 and 15,751.13 is: 21,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,497.09 : 39,325.77 = 15,751.13 : x
  2. Step 2: Convert to fraction form
    28,497.09/39,325.77 = 15,751.13/x
  3. Step 3: Cross multiply
    28,497.09x = 39,325.77 × 15,751.13
  4. Step 4: Simplify right side
    28,497.09x = 619,425,315.62
  5. Step 5: Solve for x
    x = 619,425,315.62/28,497.09
  6. Step 6: Final answer
    x = 21,736.44

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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.