Home / 28,222.06-42,341.33-12,636.04

Finding the Fourth Proportional to 28,222.06, 42,341.33 and 12,636.04

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Solution

The fourth proportional to 28,222.06, 42,341.33 and 12,636.04 is: 18,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.06 : 42,341.33 = 12,636.04 : x
  2. Step 2: Convert to fraction form
    28,222.06/42,341.33 = 12,636.04/x
  3. Step 3: Cross multiply
    28,222.06x = 42,341.33 × 12,636.04
  4. Step 4: Simplify right side
    28,222.06x = 535,026,739.53
  5. Step 5: Solve for x
    x = 535,026,739.53/28,222.06
  6. Step 6: Final answer
    x = 18,957.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.