Home / 28,116.81-38,722.68-23,357.70

Finding the Fourth Proportional to 28,116.81, 38,722.68 and 23,357.70

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Solution

The fourth proportional to 28,116.81, 38,722.68 and 23,357.70 is: 32,168.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.81 : 38,722.68 = 23,357.70 : x
  2. Step 2: Convert to fraction form
    28,116.81/38,722.68 = 23,357.70/x
  3. Step 3: Cross multiply
    28,116.81x = 38,722.68 × 23,357.70
  4. Step 4: Simplify right side
    28,116.81x = 904,472,742.64
  5. Step 5: Solve for x
    x = 904,472,742.64/28,116.81
  6. Step 6: Final answer
    x = 32,168.40

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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.