Home / 27,988.56-38,622.60-16,808.40

Finding the Fourth Proportional to 27,988.56, 38,622.60 and 16,808.40

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Solution

The fourth proportional to 27,988.56, 38,622.60 and 16,808.40 is: 23,194.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,988.56 : 38,622.60 = 16,808.40 : x
  2. Step 2: Convert to fraction form
    27,988.56/38,622.60 = 16,808.40/x
  3. Step 3: Cross multiply
    27,988.56x = 38,622.60 × 16,808.40
  4. Step 4: Simplify right side
    27,988.56x = 649,184,109.84
  5. Step 5: Solve for x
    x = 649,184,109.84/27,988.56
  6. Step 6: Final answer
    x = 23,194.62

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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.