Home / 28,193.63-42,272.05-9,215.93

Finding the Fourth Proportional to 28,193.63, 42,272.05 and 9,215.93

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Solution

The fourth proportional to 28,193.63, 42,272.05 and 9,215.93 is: 13,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,193.63 : 42,272.05 = 9,215.93 : x
  2. Step 2: Convert to fraction form
    28,193.63/42,272.05 = 9,215.93/x
  3. Step 3: Cross multiply
    28,193.63x = 42,272.05 × 9,215.93
  4. Step 4: Simplify right side
    28,193.63x = 389,576,253.76
  5. Step 5: Solve for x
    x = 389,576,253.76/28,193.63
  6. Step 6: Final answer
    x = 13,817.88

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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.