Home / 19,721.86-27,216.16-10,769.40

Finding the Fourth Proportional to 19,721.86, 27,216.16 and 10,769.40

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Solution

The fourth proportional to 19,721.86, 27,216.16 and 10,769.40 is: 14,861.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.86 : 27,216.16 = 10,769.40 : x
  2. Step 2: Convert to fraction form
    19,721.86/27,216.16 = 10,769.40/x
  3. Step 3: Cross multiply
    19,721.86x = 27,216.16 × 10,769.40
  4. Step 4: Simplify right side
    19,721.86x = 293,101,713.50
  5. Step 5: Solve for x
    x = 293,101,713.50/19,721.86
  6. Step 6: Final answer
    x = 14,861.77

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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.