Home / 27,816.81-41,686.32-12,988.95

Finding the Fourth Proportional to 27,816.81, 41,686.32 and 12,988.95

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Solution

The fourth proportional to 27,816.81, 41,686.32 and 12,988.95 is: 19,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,816.81 : 41,686.32 = 12,988.95 : x
  2. Step 2: Convert to fraction form
    27,816.81/41,686.32 = 12,988.95/x
  3. Step 3: Cross multiply
    27,816.81x = 41,686.32 × 12,988.95
  4. Step 4: Simplify right side
    27,816.81x = 541,461,526.16
  5. Step 5: Solve for x
    x = 541,461,526.16/27,816.81
  6. Step 6: Final answer
    x = 19,465.26

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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.