Home / 39,356.01-54,332.04-31,615.40

Finding the Fourth Proportional to 39,356.01, 54,332.04 and 31,615.40

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Solution

The fourth proportional to 39,356.01, 54,332.04 and 31,615.40 is: 43,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,356.01 : 54,332.04 = 31,615.40 : x
  2. Step 2: Convert to fraction form
    39,356.01/54,332.04 = 31,615.40/x
  3. Step 3: Cross multiply
    39,356.01x = 54,332.04 × 31,615.40
  4. Step 4: Simplify right side
    39,356.01x = 1,717,728,905.76
  5. Step 5: Solve for x
    x = 1,717,728,905.76/39,356.01
  6. Step 6: Final answer
    x = 43,645.91

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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.