Home / 19,710.75-27,200.85-14,679.30

Finding the Fourth Proportional to 19,710.75, 27,200.85 and 14,679.30

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Solution

The fourth proportional to 19,710.75, 27,200.85 and 14,679.30 is: 20,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.75 : 27,200.85 = 14,679.30 : x
  2. Step 2: Convert to fraction form
    19,710.75/27,200.85 = 14,679.30/x
  3. Step 3: Cross multiply
    19,710.75x = 27,200.85 × 14,679.30
  4. Step 4: Simplify right side
    19,710.75x = 399,289,437.41
  5. Step 5: Solve for x
    x = 399,289,437.41/19,710.75
  6. Step 6: Final answer
    x = 20,257.45

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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.