Home / 28,210.60-38,912.92-18,152.11

Finding the Fourth Proportional to 28,210.60, 38,912.92 and 18,152.11

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Solution

The fourth proportional to 28,210.60, 38,912.92 and 18,152.11 is: 25,038.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,210.60 : 38,912.92 = 18,152.11 : x
  2. Step 2: Convert to fraction form
    28,210.60/38,912.92 = 18,152.11/x
  3. Step 3: Cross multiply
    28,210.60x = 38,912.92 × 18,152.11
  4. Step 4: Simplify right side
    28,210.60x = 706,351,604.26
  5. Step 5: Solve for x
    x = 706,351,604.26/28,210.60
  6. Step 6: Final answer
    x = 25,038.52

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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.