Home / 28,159.13-38,859.60-16,223.58

Finding the Fourth Proportional to 28,159.13, 38,859.60 and 16,223.58

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Solution

The fourth proportional to 28,159.13, 38,859.60 and 16,223.58 is: 22,388.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.13 : 38,859.60 = 16,223.58 : x
  2. Step 2: Convert to fraction form
    28,159.13/38,859.60 = 16,223.58/x
  3. Step 3: Cross multiply
    28,159.13x = 38,859.60 × 16,223.58
  4. Step 4: Simplify right side
    28,159.13x = 630,441,829.37
  5. Step 5: Solve for x
    x = 630,441,829.37/28,159.13
  6. Step 6: Final answer
    x = 22,388.54

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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.