Home / 39,830.23-54,967.28-21,926.90

Finding the Fourth Proportional to 39,830.23, 54,967.28 and 21,926.90

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Solution

The fourth proportional to 39,830.23, 54,967.28 and 21,926.90 is: 30,259.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.23 : 54,967.28 = 21,926.90 : x
  2. Step 2: Convert to fraction form
    39,830.23/54,967.28 = 21,926.90/x
  3. Step 3: Cross multiply
    39,830.23x = 54,967.28 × 21,926.90
  4. Step 4: Simplify right side
    39,830.23x = 1,205,262,106.65
  5. Step 5: Solve for x
    x = 1,205,262,106.65/39,830.23
  6. Step 6: Final answer
    x = 30,259.99

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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.