Home / 27,220.40-40,805.98-18,904.33

Finding the Fourth Proportional to 27,220.40, 40,805.98 and 18,904.33

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Solution

The fourth proportional to 27,220.40, 40,805.98 and 18,904.33 is: 28,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,220.40 : 40,805.98 = 18,904.33 : x
  2. Step 2: Convert to fraction form
    27,220.40/40,805.98 = 18,904.33/x
  3. Step 3: Cross multiply
    27,220.40x = 40,805.98 × 18,904.33
  4. Step 4: Simplify right side
    27,220.40x = 771,409,711.89
  5. Step 5: Solve for x
    x = 771,409,711.89/27,220.40
  6. Step 6: Final answer
    x = 28,339.40

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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.