Home / 28,253.40-42,373-11,618.08

Finding the Fourth Proportional to 28,253.40, 42,373 and 11,618.08

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Solution

The fourth proportional to 28,253.40, 42,373 and 11,618.08 is: 17,424.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,253.40 : 42,373 = 11,618.08 : x
  2. Step 2: Convert to fraction form
    28,253.40/42,373 = 11,618.08/x
  3. Step 3: Cross multiply
    28,253.40x = 42,373 × 11,618.08
  4. Step 4: Simplify right side
    28,253.40x = 492,292,903.84
  5. Step 5: Solve for x
    x = 492,292,903.84/28,253.40
  6. Step 6: Final answer
    x = 17,424.20

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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.