Home / 30,666.17-42,320.51-17,237.38

Finding the Fourth Proportional to 30,666.17, 42,320.51 and 17,237.38

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Solution

The fourth proportional to 30,666.17, 42,320.51 and 17,237.38 is: 23,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,666.17 : 42,320.51 = 17,237.38 : x
  2. Step 2: Convert to fraction form
    30,666.17/42,320.51 = 17,237.38/x
  3. Step 3: Cross multiply
    30,666.17x = 42,320.51 × 17,237.38
  4. Step 4: Simplify right side
    30,666.17x = 729,494,414.87
  5. Step 5: Solve for x
    x = 729,494,414.87/30,666.17
  6. Step 6: Final answer
    x = 23,788.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.