Home / 39,091.79-53,946.45-21,186.60

Finding the Fourth Proportional to 39,091.79, 53,946.45 and 21,186.60

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Solution

The fourth proportional to 39,091.79, 53,946.45 and 21,186.60 is: 29,237.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,091.79 : 53,946.45 = 21,186.60 : x
  2. Step 2: Convert to fraction form
    39,091.79/53,946.45 = 21,186.60/x
  3. Step 3: Cross multiply
    39,091.79x = 53,946.45 × 21,186.60
  4. Step 4: Simplify right side
    39,091.79x = 1,142,941,857.57
  5. Step 5: Solve for x
    x = 1,142,941,857.57/39,091.79
  6. Step 6: Final answer
    x = 29,237.39

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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.