Home / 39,966.60-55,154.10-22,061.28

Finding the Fourth Proportional to 39,966.60, 55,154.10 and 22,061.28

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Solution

The fourth proportional to 39,966.60, 55,154.10 and 22,061.28 is: 30,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,966.60 : 55,154.10 = 22,061.28 : x
  2. Step 2: Convert to fraction form
    39,966.60/55,154.10 = 22,061.28/x
  3. Step 3: Cross multiply
    39,966.60x = 55,154.10 × 22,061.28
  4. Step 4: Simplify right side
    39,966.60x = 1,216,770,043.25
  5. Step 5: Solve for x
    x = 1,216,770,043.25/39,966.60
  6. Step 6: Final answer
    x = 30,444.67

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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.