Home / 19,292.07-28,949.04-12,721.35

Finding the Fourth Proportional to 19,292.07, 28,949.04 and 12,721.35

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Solution

The fourth proportional to 19,292.07, 28,949.04 and 12,721.35 is: 19,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,292.07 : 28,949.04 = 12,721.35 : x
  2. Step 2: Convert to fraction form
    19,292.07/28,949.04 = 12,721.35/x
  3. Step 3: Cross multiply
    19,292.07x = 28,949.04 × 12,721.35
  4. Step 4: Simplify right side
    19,292.07x = 368,270,870.00
  5. Step 5: Solve for x
    x = 368,270,870.00/19,292.07
  6. Step 6: Final answer
    x = 19,089.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.