Home / 28,973.09-39,987.87-16,397.84

Finding the Fourth Proportional to 28,973.09, 39,987.87 and 16,397.84

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Solution

The fourth proportional to 28,973.09, 39,987.87 and 16,397.84 is: 22,631.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.09 : 39,987.87 = 16,397.84 : x
  2. Step 2: Convert to fraction form
    28,973.09/39,987.87 = 16,397.84/x
  3. Step 3: Cross multiply
    28,973.09x = 39,987.87 × 16,397.84
  4. Step 4: Simplify right side
    28,973.09x = 655,714,694.20
  5. Step 5: Solve for x
    x = 655,714,694.20/28,973.09
  6. Step 6: Final answer
    x = 22,631.85

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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.