Home / 20,426.61-28,187.19-11,472.37

Finding the Fourth Proportional to 20,426.61, 28,187.19 and 11,472.37

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Solution

The fourth proportional to 20,426.61, 28,187.19 and 11,472.37 is: 15,831.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.61 : 28,187.19 = 11,472.37 : x
  2. Step 2: Convert to fraction form
    20,426.61/28,187.19 = 11,472.37/x
  3. Step 3: Cross multiply
    20,426.61x = 28,187.19 × 11,472.37
  4. Step 4: Simplify right side
    20,426.61x = 323,373,802.47
  5. Step 5: Solve for x
    x = 323,373,802.47/20,426.61
  6. Step 6: Final answer
    x = 15,831.00

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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.