Home / 31,320.78-42,958.07-29,626.26

Finding the Fourth Proportional to 31,320.78, 42,958.07 and 29,626.26

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Solution

The fourth proportional to 31,320.78, 42,958.07 and 29,626.26 is: 40,633.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,320.78 : 42,958.07 = 29,626.26 : x
  2. Step 2: Convert to fraction form
    31,320.78/42,958.07 = 29,626.26/x
  3. Step 3: Cross multiply
    31,320.78x = 42,958.07 × 29,626.26
  4. Step 4: Simplify right side
    31,320.78x = 1,272,686,802.79
  5. Step 5: Solve for x
    x = 1,272,686,802.79/31,320.78
  6. Step 6: Final answer
    x = 40,633.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.