Home / 22,270.69-30,712.35-13,316.77

Finding the Fourth Proportional to 22,270.69, 30,712.35 and 13,316.77

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Solution

The fourth proportional to 22,270.69, 30,712.35 and 13,316.77 is: 18,364.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,270.69 : 30,712.35 = 13,316.77 : x
  2. Step 2: Convert to fraction form
    22,270.69/30,712.35 = 13,316.77/x
  3. Step 3: Cross multiply
    22,270.69x = 30,712.35 × 13,316.77
  4. Step 4: Simplify right side
    22,270.69x = 408,989,301.11
  5. Step 5: Solve for x
    x = 408,989,301.11/22,270.69
  6. Step 6: Final answer
    x = 18,364.46

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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.