Home / 39,666.84-54,740.66-21,761.39

Finding the Fourth Proportional to 39,666.84, 54,740.66 and 21,761.39

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Solution

The fourth proportional to 39,666.84, 54,740.66 and 21,761.39 is: 30,030.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,666.84 : 54,740.66 = 21,761.39 : x
  2. Step 2: Convert to fraction form
    39,666.84/54,740.66 = 21,761.39/x
  3. Step 3: Cross multiply
    39,666.84x = 54,740.66 × 21,761.39
  4. Step 4: Simplify right side
    39,666.84x = 1,191,232,851.12
  5. Step 5: Solve for x
    x = 1,191,232,851.12/39,666.84
  6. Step 6: Final answer
    x = 30,030.95

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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.