Home / 27,490.40-37,936.60-14,915.12

Finding the Fourth Proportional to 27,490.40, 37,936.60 and 14,915.12

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Solution

The fourth proportional to 27,490.40, 37,936.60 and 14,915.12 is: 20,582.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,490.40 : 37,936.60 = 14,915.12 : x
  2. Step 2: Convert to fraction form
    27,490.40/37,936.60 = 14,915.12/x
  3. Step 3: Cross multiply
    27,490.40x = 37,936.60 × 14,915.12
  4. Step 4: Simplify right side
    27,490.40x = 565,828,941.39
  5. Step 5: Solve for x
    x = 565,828,941.39/27,490.40
  6. Step 6: Final answer
    x = 20,582.78

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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.