Home / 19,883.04-29,784.74-11,981.16

Finding the Fourth Proportional to 19,883.04, 29,784.74 and 11,981.16

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Solution

The fourth proportional to 19,883.04, 29,784.74 and 11,981.16 is: 17,947.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,883.04 : 29,784.74 = 11,981.16 : x
  2. Step 2: Convert to fraction form
    19,883.04/29,784.74 = 11,981.16/x
  3. Step 3: Cross multiply
    19,883.04x = 29,784.74 × 11,981.16
  4. Step 4: Simplify right side
    19,883.04x = 356,855,735.50
  5. Step 5: Solve for x
    x = 356,855,735.50/19,883.04
  6. Step 6: Final answer
    x = 17,947.75

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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.