Home / 22,486.50-31,002.53-18,438.41

Finding the Fourth Proportional to 22,486.50, 31,002.53 and 18,438.41

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Solution

The fourth proportional to 22,486.50, 31,002.53 and 18,438.41 is: 25,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,486.50 : 31,002.53 = 18,438.41 : x
  2. Step 2: Convert to fraction form
    22,486.50/31,002.53 = 18,438.41/x
  3. Step 3: Cross multiply
    22,486.50x = 31,002.53 × 18,438.41
  4. Step 4: Simplify right side
    22,486.50x = 571,637,344.49
  5. Step 5: Solve for x
    x = 571,637,344.49/22,486.50
  6. Step 6: Final answer
    x = 25,421.36

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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.