Home / 30,177.36-45,294.84-18,513.36

Finding the Fourth Proportional to 30,177.36, 45,294.84 and 18,513.36

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Solution

The fourth proportional to 30,177.36, 45,294.84 and 18,513.36 is: 27,787.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,177.36 : 45,294.84 = 18,513.36 : x
  2. Step 2: Convert to fraction form
    30,177.36/45,294.84 = 18,513.36/x
  3. Step 3: Cross multiply
    30,177.36x = 45,294.84 × 18,513.36
  4. Step 4: Simplify right side
    30,177.36x = 838,559,679.06
  5. Step 5: Solve for x
    x = 838,559,679.06/30,177.36
  6. Step 6: Final answer
    x = 27,787.71

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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.