Home / 19,800.04-27,319.08-12,735.76

Finding the Fourth Proportional to 19,800.04, 27,319.08 and 12,735.76

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Solution

The fourth proportional to 19,800.04, 27,319.08 and 12,735.76 is: 17,572.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,800.04 : 27,319.08 = 12,735.76 : x
  2. Step 2: Convert to fraction form
    19,800.04/27,319.08 = 12,735.76/x
  3. Step 3: Cross multiply
    19,800.04x = 27,319.08 × 12,735.76
  4. Step 4: Simplify right side
    19,800.04x = 347,929,246.30
  5. Step 5: Solve for x
    x = 347,929,246.30/19,800.04
  6. Step 6: Final answer
    x = 17,572.15

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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.