Home / 39,013.58-53,838.71-22,021.40

Finding the Fourth Proportional to 39,013.58, 53,838.71 and 22,021.40

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Solution

The fourth proportional to 39,013.58, 53,838.71 and 22,021.40 is: 30,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,013.58 : 53,838.71 = 22,021.40 : x
  2. Step 2: Convert to fraction form
    39,013.58/53,838.71 = 22,021.40/x
  3. Step 3: Cross multiply
    39,013.58x = 53,838.71 × 22,021.40
  4. Step 4: Simplify right side
    39,013.58x = 1,185,603,658.29
  5. Step 5: Solve for x
    x = 1,185,603,658.29/39,013.58
  6. Step 6: Final answer
    x = 30,389.51

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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.