Home / 39,084.66-53,937-21,179.70

Finding the Fourth Proportional to 39,084.66, 53,937 and 21,179.70

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Solution

The fourth proportional to 39,084.66, 53,937 and 21,179.70 is: 29,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,084.66 : 53,937 = 21,179.70 : x
  2. Step 2: Convert to fraction form
    39,084.66/53,937 = 21,179.70/x
  3. Step 3: Cross multiply
    39,084.66x = 53,937 × 21,179.70
  4. Step 4: Simplify right side
    39,084.66x = 1,142,369,478.90
  5. Step 5: Solve for x
    x = 1,142,369,478.90/39,084.66
  6. Step 6: Final answer
    x = 29,228.08

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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.