Home / 19,772.40-27,285.67-10,819.80

Finding the Fourth Proportional to 19,772.40, 27,285.67 and 10,819.80

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Solution

The fourth proportional to 19,772.40, 27,285.67 and 10,819.80 is: 14,931.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,772.40 : 27,285.67 = 10,819.80 : x
  2. Step 2: Convert to fraction form
    19,772.40/27,285.67 = 10,819.80/x
  3. Step 3: Cross multiply
    19,772.40x = 27,285.67 × 10,819.80
  4. Step 4: Simplify right side
    19,772.40x = 295,225,492.27
  5. Step 5: Solve for x
    x = 295,225,492.27/19,772.40
  6. Step 6: Final answer
    x = 14,931.19

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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.