Home / 22,637.99-31,228.15-13,688.37

Finding the Fourth Proportional to 22,637.99, 31,228.15 and 13,688.37

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Solution

The fourth proportional to 22,637.99, 31,228.15 and 13,688.37 is: 18,882.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,637.99 : 31,228.15 = 13,688.37 : x
  2. Step 2: Convert to fraction form
    22,637.99/31,228.15 = 13,688.37/x
  3. Step 3: Cross multiply
    22,637.99x = 31,228.15 × 13,688.37
  4. Step 4: Simplify right side
    22,637.99x = 427,462,471.62
  5. Step 5: Solve for x
    x = 427,462,471.62/22,637.99
  6. Step 6: Final answer
    x = 18,882.53

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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.