Home / 39,622.36-54,678.54-22,855

Finding the Fourth Proportional to 39,622.36, 54,678.54 and 22,855

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Solution

The fourth proportional to 39,622.36, 54,678.54 and 22,855 is: 31,539.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,622.36 : 54,678.54 = 22,855 : x
  2. Step 2: Convert to fraction form
    39,622.36/54,678.54 = 22,855/x
  3. Step 3: Cross multiply
    39,622.36x = 54,678.54 × 22,855
  4. Step 4: Simplify right side
    39,622.36x = 1,249,678,031.70
  5. Step 5: Solve for x
    x = 1,249,678,031.70/39,622.36
  6. Step 6: Final answer
    x = 31,539.72

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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.