Home / 16,390.98-24,549.48-13,438.53

Finding the Fourth Proportional to 16,390.98, 24,549.48 and 13,438.53

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Solution

The fourth proportional to 16,390.98, 24,549.48 and 13,438.53 is: 20,127.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.98 : 24,549.48 = 13,438.53 : x
  2. Step 2: Convert to fraction form
    16,390.98/24,549.48 = 13,438.53/x
  3. Step 3: Cross multiply
    16,390.98x = 24,549.48 × 13,438.53
  4. Step 4: Simplify right side
    16,390.98x = 329,908,923.46
  5. Step 5: Solve for x
    x = 329,908,923.46/16,390.98
  6. Step 6: Final answer
    x = 20,127.47

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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.