Home / 19,680.21-27,157.77-10,727.41

Finding the Fourth Proportional to 19,680.21, 27,157.77 and 10,727.41

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Solution

The fourth proportional to 19,680.21, 27,157.77 and 10,727.41 is: 14,803.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680.21 : 27,157.77 = 10,727.41 : x
  2. Step 2: Convert to fraction form
    19,680.21/27,157.77 = 10,727.41/x
  3. Step 3: Cross multiply
    19,680.21x = 27,157.77 × 10,727.41
  4. Step 4: Simplify right side
    19,680.21x = 291,332,533.48
  5. Step 5: Solve for x
    x = 291,332,533.48/19,680.21
  6. Step 6: Final answer
    x = 14,803.32

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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.