Home / 39,931.86-55,123.66-25,791.60

Finding the Fourth Proportional to 39,931.86, 55,123.66 and 25,791.60

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Solution

The fourth proportional to 39,931.86, 55,123.66 and 25,791.60 is: 35,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,931.86 : 55,123.66 = 25,791.60 : x
  2. Step 2: Convert to fraction form
    39,931.86/55,123.66 = 25,791.60/x
  3. Step 3: Cross multiply
    39,931.86x = 55,123.66 × 25,791.60
  4. Step 4: Simplify right side
    39,931.86x = 1,421,727,389.26
  5. Step 5: Solve for x
    x = 1,421,727,389.26/39,931.86
  6. Step 6: Final answer
    x = 35,603.84

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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.