Home / 22,014.06-30,378.81-13,397.01

Finding the Fourth Proportional to 22,014.06, 30,378.81 and 13,397.01

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Solution

The fourth proportional to 22,014.06, 30,378.81 and 13,397.01 is: 18,487.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,014.06 : 30,378.81 = 13,397.01 : x
  2. Step 2: Convert to fraction form
    22,014.06/30,378.81 = 13,397.01/x
  3. Step 3: Cross multiply
    22,014.06x = 30,378.81 × 13,397.01
  4. Step 4: Simplify right side
    22,014.06x = 406,985,221.36
  5. Step 5: Solve for x
    x = 406,985,221.36/22,014.06
  6. Step 6: Final answer
    x = 18,487.51

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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.