Home / 28,360.14-39,135.47-15,610.84

Finding the Fourth Proportional to 28,360.14, 39,135.47 and 15,610.84

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Solution

The fourth proportional to 28,360.14, 39,135.47 and 15,610.84 is: 21,542.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,360.14 : 39,135.47 = 15,610.84 : x
  2. Step 2: Convert to fraction form
    28,360.14/39,135.47 = 15,610.84/x
  3. Step 3: Cross multiply
    28,360.14x = 39,135.47 × 15,610.84
  4. Step 4: Simplify right side
    28,360.14x = 610,937,384.60
  5. Step 5: Solve for x
    x = 610,937,384.60/28,360.14
  6. Step 6: Final answer
    x = 21,542.12

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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.