Home / 28,710.05-39,619.84-15,962.84

Finding the Fourth Proportional to 28,710.05, 39,619.84 and 15,962.84

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Solution

The fourth proportional to 28,710.05, 39,619.84 and 15,962.84 is: 22,028.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,710.05 : 39,619.84 = 15,962.84 : x
  2. Step 2: Convert to fraction form
    28,710.05/39,619.84 = 15,962.84/x
  3. Step 3: Cross multiply
    28,710.05x = 39,619.84 × 15,962.84
  4. Step 4: Simplify right side
    28,710.05x = 632,444,928.74
  5. Step 5: Solve for x
    x = 632,444,928.74/28,710.05
  6. Step 6: Final answer
    x = 22,028.69

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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.