Home / 18,423.15-27,608.56-14,190.40

Finding the Fourth Proportional to 18,423.15, 27,608.56 and 14,190.40

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Solution

The fourth proportional to 18,423.15, 27,608.56 and 14,190.40 is: 21,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,423.15 : 27,608.56 = 14,190.40 : x
  2. Step 2: Convert to fraction form
    18,423.15/27,608.56 = 14,190.40/x
  3. Step 3: Cross multiply
    18,423.15x = 27,608.56 × 14,190.40
  4. Step 4: Simplify right side
    18,423.15x = 391,776,509.82
  5. Step 5: Solve for x
    x = 391,776,509.82/18,423.15
  6. Step 6: Final answer
    x = 21,265.45

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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.