Home / 30,616.09-45,938.25-13,981.22

Finding the Fourth Proportional to 30,616.09, 45,938.25 and 13,981.22

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Solution

The fourth proportional to 30,616.09, 45,938.25 and 13,981.22 is: 20,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,616.09 : 45,938.25 = 13,981.22 : x
  2. Step 2: Convert to fraction form
    30,616.09/45,938.25 = 13,981.22/x
  3. Step 3: Cross multiply
    30,616.09x = 45,938.25 × 13,981.22
  4. Step 4: Simplify right side
    30,616.09x = 642,272,549.97
  5. Step 5: Solve for x
    x = 642,272,549.97/30,616.09
  6. Step 6: Final answer
    x = 20,978.27

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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.