Home / 28,352.08-39,126.36-15,605.80

Finding the Fourth Proportional to 28,352.08, 39,126.36 and 15,605.80

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Solution

The fourth proportional to 28,352.08, 39,126.36 and 15,605.80 is: 21,536.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,352.08 : 39,126.36 = 15,605.80 : x
  2. Step 2: Convert to fraction form
    28,352.08/39,126.36 = 15,605.80/x
  3. Step 3: Cross multiply
    28,352.08x = 39,126.36 × 15,605.80
  4. Step 4: Simplify right side
    28,352.08x = 610,598,148.89
  5. Step 5: Solve for x
    x = 610,598,148.89/28,352.08
  6. Step 6: Final answer
    x = 21,536.27

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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.