Home / 27,487-37,931.70-14,912.20

Finding the Fourth Proportional to 27,487, 37,931.70 and 14,912.20

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Solution

The fourth proportional to 27,487, 37,931.70 and 14,912.20 is: 20,578.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,487 : 37,931.70 = 14,912.20 : x
  2. Step 2: Convert to fraction form
    27,487/37,931.70 = 14,912.20/x
  3. Step 3: Cross multiply
    27,487x = 37,931.70 × 14,912.20
  4. Step 4: Simplify right side
    27,487x = 565,645,096.74
  5. Step 5: Solve for x
    x = 565,645,096.74/27,487
  6. Step 6: Final answer
    x = 20,578.64

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1.5x scale

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.