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Finding the Fourth Proportional to 27,287.58, 40,931.38 and 12,277.17

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Solution

The fourth proportional to 27,287.58, 40,931.38 and 12,277.17 is: 18,415.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,287.58 : 40,931.38 = 12,277.17 : x
  2. Step 2: Convert to fraction form
    27,287.58/40,931.38 = 12,277.17/x
  3. Step 3: Cross multiply
    27,287.58x = 40,931.38 × 12,277.17
  4. Step 4: Simplify right side
    27,287.58x = 502,521,510.59
  5. Step 5: Solve for x
    x = 502,521,510.59/27,287.58
  6. Step 6: Final answer
    x = 18,415.76

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1.5x scale

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.