Home / 22,578.68-31,158.48-13,018.49

Finding the Fourth Proportional to 22,578.68, 31,158.48 and 13,018.49

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Solution

The fourth proportional to 22,578.68, 31,158.48 and 13,018.49 is: 17,965.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,578.68 : 31,158.48 = 13,018.49 : x
  2. Step 2: Convert to fraction form
    22,578.68/31,158.48 = 13,018.49/x
  3. Step 3: Cross multiply
    22,578.68x = 31,158.48 × 13,018.49
  4. Step 4: Simplify right side
    22,578.68x = 405,636,204.50
  5. Step 5: Solve for x
    x = 405,636,204.50/22,578.68
  6. Step 6: Final answer
    x = 17,965.46

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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.