Home / 22,130.42-30,534.53-13,521.11

Finding the Fourth Proportional to 22,130.42, 30,534.53 and 13,521.11

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Solution

The fourth proportional to 22,130.42, 30,534.53 and 13,521.11 is: 18,655.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,130.42 : 30,534.53 = 13,521.11 : x
  2. Step 2: Convert to fraction form
    22,130.42/30,534.53 = 13,521.11/x
  3. Step 3: Cross multiply
    22,130.42x = 30,534.53 × 13,521.11
  4. Step 4: Simplify right side
    22,130.42x = 412,860,518.65
  5. Step 5: Solve for x
    x = 412,860,518.65/22,130.42
  6. Step 6: Final answer
    x = 18,655.80

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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.