Home / 19,772.56-27,285.90-10,819.98

Finding the Fourth Proportional to 19,772.56, 27,285.90 and 10,819.98

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Solution

The fourth proportional to 19,772.56, 27,285.90 and 10,819.98 is: 14,931.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.56 : 27,285.90 = 10,819.98 : x
  2. Step 2: Convert to fraction form
    19,772.56/27,285.90 = 10,819.98/x
  3. Step 3: Cross multiply
    19,772.56x = 27,285.90 × 10,819.98
  4. Step 4: Simplify right side
    19,772.56x = 295,232,892.28
  5. Step 5: Solve for x
    x = 295,232,892.28/19,772.56
  6. Step 6: Final answer
    x = 14,931.45

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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.