Home / 28,029.77-38,681.39-15,282.85

Finding the Fourth Proportional to 28,029.77, 38,681.39 and 15,282.85

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Solution

The fourth proportional to 28,029.77, 38,681.39 and 15,282.85 is: 21,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.77 : 38,681.39 = 15,282.85 : x
  2. Step 2: Convert to fraction form
    28,029.77/38,681.39 = 15,282.85/x
  3. Step 3: Cross multiply
    28,029.77x = 38,681.39 × 15,282.85
  4. Step 4: Simplify right side
    28,029.77x = 591,161,708.04
  5. Step 5: Solve for x
    x = 591,161,708.04/28,029.77
  6. Step 6: Final answer
    x = 21,090.50

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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.