Home / 27,736.49-38,276.36-14,989.64

Finding the Fourth Proportional to 27,736.49, 38,276.36 and 14,989.64

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Solution

The fourth proportional to 27,736.49, 38,276.36 and 14,989.64 is: 20,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.49 : 38,276.36 = 14,989.64 : x
  2. Step 2: Convert to fraction form
    27,736.49/38,276.36 = 14,989.64/x
  3. Step 3: Cross multiply
    27,736.49x = 38,276.36 × 14,989.64
  4. Step 4: Simplify right side
    27,736.49x = 573,748,946.41
  5. Step 5: Solve for x
    x = 573,748,946.41/27,736.49
  6. Step 6: Final answer
    x = 20,685.71

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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.