Home / 28,298.70-39,056.58-20,367.18

Finding the Fourth Proportional to 28,298.70, 39,056.58 and 20,367.18

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Solution

The fourth proportional to 28,298.70, 39,056.58 and 20,367.18 is: 28,109.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,298.70 : 39,056.58 = 20,367.18 : x
  2. Step 2: Convert to fraction form
    28,298.70/39,056.58 = 20,367.18/x
  3. Step 3: Cross multiply
    28,298.70x = 39,056.58 × 20,367.18
  4. Step 4: Simplify right side
    28,298.70x = 795,472,395.04
  5. Step 5: Solve for x
    x = 795,472,395.04/28,298.70
  6. Step 6: Final answer
    x = 28,109.86

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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.