Home / 27,929.40-41,870.50-12,122.48

Finding the Fourth Proportional to 27,929.40, 41,870.50 and 12,122.48

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Solution

The fourth proportional to 27,929.40, 41,870.50 and 12,122.48 is: 18,173.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,929.40 : 41,870.50 = 12,122.48 : x
  2. Step 2: Convert to fraction form
    27,929.40/41,870.50 = 12,122.48/x
  3. Step 3: Cross multiply
    27,929.40x = 41,870.50 × 12,122.48
  4. Step 4: Simplify right side
    27,929.40x = 507,574,059.18
  5. Step 5: Solve for x
    x = 507,574,059.18/27,929.40
  6. Step 6: Final answer
    x = 18,173.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.