Home / 35,771.09-49,366.40-20,664.38

Finding the Fourth Proportional to 35,771.09, 49,366.40 and 20,664.38

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Solution

The fourth proportional to 35,771.09, 49,366.40 and 20,664.38 is: 28,518.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,771.09 : 49,366.40 = 20,664.38 : x
  2. Step 2: Convert to fraction form
    35,771.09/49,366.40 = 20,664.38/x
  3. Step 3: Cross multiply
    35,771.09x = 49,366.40 × 20,664.38
  4. Step 4: Simplify right side
    35,771.09x = 1,020,126,068.93
  5. Step 5: Solve for x
    x = 1,020,126,068.93/35,771.09
  6. Step 6: Final answer
    x = 28,518.18

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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.