Home / 22,178.76-30,606.70-12,749.16

Finding the Fourth Proportional to 22,178.76, 30,606.70 and 12,749.16

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Solution

The fourth proportional to 22,178.76, 30,606.70 and 12,749.16 is: 17,593.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,178.76 : 30,606.70 = 12,749.16 : x
  2. Step 2: Convert to fraction form
    22,178.76/30,606.70 = 12,749.16/x
  3. Step 3: Cross multiply
    22,178.76x = 30,606.70 × 12,749.16
  4. Step 4: Simplify right side
    22,178.76x = 390,209,715.37
  5. Step 5: Solve for x
    x = 390,209,715.37/22,178.76
  6. Step 6: Final answer
    x = 17,593.85

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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.