Home / 20,068.31-27,688.05-11,569.34

Finding the Fourth Proportional to 20,068.31, 27,688.05 and 11,569.34

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Solution

The fourth proportional to 20,068.31, 27,688.05 and 11,569.34 is: 15,962.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,068.31 : 27,688.05 = 11,569.34 : x
  2. Step 2: Convert to fraction form
    20,068.31/27,688.05 = 11,569.34/x
  3. Step 3: Cross multiply
    20,068.31x = 27,688.05 × 11,569.34
  4. Step 4: Simplify right side
    20,068.31x = 320,332,533.61
  5. Step 5: Solve for x
    x = 320,332,533.61/20,068.31
  6. Step 6: Final answer
    x = 15,962.11

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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.