Home / 28,144.67-42,222.12-13,353.45

Finding the Fourth Proportional to 28,144.67, 42,222.12 and 13,353.45

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Solution

The fourth proportional to 28,144.67, 42,222.12 and 13,353.45 is: 20,032.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,144.67 : 42,222.12 = 13,353.45 : x
  2. Step 2: Convert to fraction form
    28,144.67/42,222.12 = 13,353.45/x
  3. Step 3: Cross multiply
    28,144.67x = 42,222.12 × 13,353.45
  4. Step 4: Simplify right side
    28,144.67x = 563,810,968.31
  5. Step 5: Solve for x
    x = 563,810,968.31/28,144.67
  6. Step 6: Final answer
    x = 20,032.60

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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.