Home / 35,513.71-49,011.69-20,411.64

Finding the Fourth Proportional to 35,513.71, 49,011.69 and 20,411.64

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Solution

The fourth proportional to 35,513.71, 49,011.69 and 20,411.64 is: 28,169.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,513.71 : 49,011.69 = 20,411.64 : x
  2. Step 2: Convert to fraction form
    35,513.71/49,011.69 = 20,411.64/x
  3. Step 3: Cross multiply
    35,513.71x = 49,011.69 × 20,411.64
  4. Step 4: Simplify right side
    35,513.71x = 1,000,408,972.07
  5. Step 5: Solve for x
    x = 1,000,408,972.07/35,513.71
  6. Step 6: Final answer
    x = 28,169.66

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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.