Home / 17,984.16-26,956.08-12,981.60

Finding the Fourth Proportional to 17,984.16, 26,956.08 and 12,981.60

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Solution

The fourth proportional to 17,984.16, 26,956.08 and 12,981.60 is: 19,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,984.16 : 26,956.08 = 12,981.60 : x
  2. Step 2: Convert to fraction form
    17,984.16/26,956.08 = 12,981.60/x
  3. Step 3: Cross multiply
    17,984.16x = 26,956.08 × 12,981.60
  4. Step 4: Simplify right side
    17,984.16x = 349,933,048.13
  5. Step 5: Solve for x
    x = 349,933,048.13/17,984.16
  6. Step 6: Final answer
    x = 19,457.85

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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.