Home / 28,162.05-38,859.30-16,223.06

Finding the Fourth Proportional to 28,162.05, 38,859.30 and 16,223.06

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Solution

The fourth proportional to 28,162.05, 38,859.30 and 16,223.06 is: 22,385.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162.05 : 38,859.30 = 16,223.06 : x
  2. Step 2: Convert to fraction form
    28,162.05/38,859.30 = 16,223.06/x
  3. Step 3: Cross multiply
    28,162.05x = 38,859.30 × 16,223.06
  4. Step 4: Simplify right side
    28,162.05x = 630,416,561.16
  5. Step 5: Solve for x
    x = 630,416,561.16/28,162.05
  6. Step 6: Final answer
    x = 22,385.32

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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.