Home / 20,913.81-31,370.78-14,701.62

Finding the Fourth Proportional to 20,913.81, 31,370.78 and 14,701.62

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Solution

The fourth proportional to 20,913.81, 31,370.78 and 14,701.62 is: 22,052.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,913.81 : 31,370.78 = 14,701.62 : x
  2. Step 2: Convert to fraction form
    20,913.81/31,370.78 = 14,701.62/x
  3. Step 3: Cross multiply
    20,913.81x = 31,370.78 × 14,701.62
  4. Step 4: Simplify right side
    20,913.81x = 461,201,323.42
  5. Step 5: Solve for x
    x = 461,201,323.42/20,913.81
  6. Step 6: Final answer
    x = 22,052.48

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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.