Home / 19,679.04-27,155.52-12,604.50

Finding the Fourth Proportional to 19,679.04, 27,155.52 and 12,604.50

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Solution

The fourth proportional to 19,679.04, 27,155.52 and 12,604.50 is: 17,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,679.04 : 27,155.52 = 12,604.50 : x
  2. Step 2: Convert to fraction form
    19,679.04/27,155.52 = 12,604.50/x
  3. Step 3: Cross multiply
    19,679.04x = 27,155.52 × 12,604.50
  4. Step 4: Simplify right side
    19,679.04x = 342,281,751.84
  5. Step 5: Solve for x
    x = 342,281,751.84/19,679.04
  6. Step 6: Final answer
    x = 17,393.21

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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.