Home / 39,420.40-54,381.30-26,678.04

Finding the Fourth Proportional to 39,420.40, 54,381.30 and 26,678.04

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Solution

The fourth proportional to 39,420.40, 54,381.30 and 26,678.04 is: 36,802.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,420.40 : 54,381.30 = 26,678.04 : x
  2. Step 2: Convert to fraction form
    39,420.40/54,381.30 = 26,678.04/x
  3. Step 3: Cross multiply
    39,420.40x = 54,381.30 × 26,678.04
  4. Step 4: Simplify right side
    39,420.40x = 1,450,786,496.65
  5. Step 5: Solve for x
    x = 1,450,786,496.65/39,420.40
  6. Step 6: Final answer
    x = 36,802.94

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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.