Home / 35,769.96-49,364.70-20,665.40

Finding the Fourth Proportional to 35,769.96, 49,364.70 and 20,665.40

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Solution

The fourth proportional to 35,769.96, 49,364.70 and 20,665.40 is: 28,519.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,769.96 : 49,364.70 = 20,665.40 : x
  2. Step 2: Convert to fraction form
    35,769.96/49,364.70 = 20,665.40/x
  3. Step 3: Cross multiply
    35,769.96x = 49,364.70 × 20,665.40
  4. Step 4: Simplify right side
    35,769.96x = 1,020,141,271.38
  5. Step 5: Solve for x
    x = 1,020,141,271.38/35,769.96
  6. Step 6: Final answer
    x = 28,519.50

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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.