Home / 27,870.48-41,812.10-12,078.16

Finding the Fourth Proportional to 27,870.48, 41,812.10 and 12,078.16

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Solution

The fourth proportional to 27,870.48, 41,812.10 and 12,078.16 is: 18,120.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,870.48 : 41,812.10 = 12,078.16 : x
  2. Step 2: Convert to fraction form
    27,870.48/41,812.10 = 12,078.16/x
  3. Step 3: Cross multiply
    27,870.48x = 41,812.10 × 12,078.16
  4. Step 4: Simplify right side
    27,870.48x = 505,013,084.71
  5. Step 5: Solve for x
    x = 505,013,084.71/27,870.48
  6. Step 6: Final answer
    x = 18,120.00

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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.