Home / 20,313.28-28,032.78-14,355.46

Finding the Fourth Proportional to 20,313.28, 28,032.78 and 14,355.46

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Solution

The fourth proportional to 20,313.28, 28,032.78 and 14,355.46 is: 19,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,313.28 : 28,032.78 = 14,355.46 : x
  2. Step 2: Convert to fraction form
    20,313.28/28,032.78 = 14,355.46/x
  3. Step 3: Cross multiply
    20,313.28x = 28,032.78 × 14,355.46
  4. Step 4: Simplify right side
    20,313.28x = 402,423,451.98
  5. Step 5: Solve for x
    x = 402,423,451.98/20,313.28
  6. Step 6: Final answer
    x = 19,810.86

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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.