Home / 22,688.18-31,288.74-14,187.60

Finding the Fourth Proportional to 22,688.18, 31,288.74 and 14,187.60

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Solution

The fourth proportional to 22,688.18, 31,288.74 and 14,187.60 is: 19,565.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.18 : 31,288.74 = 14,187.60 : x
  2. Step 2: Convert to fraction form
    22,688.18/31,288.74 = 14,187.60/x
  3. Step 3: Cross multiply
    22,688.18x = 31,288.74 × 14,187.60
  4. Step 4: Simplify right side
    22,688.18x = 443,912,127.62
  5. Step 5: Solve for x
    x = 443,912,127.62/22,688.18
  6. Step 6: Final answer
    x = 19,565.79

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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.