Home / 25,341.40-38,015.70-8,702.20

Finding the Fourth Proportional to 25,341.40, 38,015.70 and 8,702.20

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Solution

The fourth proportional to 25,341.40, 38,015.70 and 8,702.20 is: 13,054.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,341.40 : 38,015.70 = 8,702.20 : x
  2. Step 2: Convert to fraction form
    25,341.40/38,015.70 = 8,702.20/x
  3. Step 3: Cross multiply
    25,341.40x = 38,015.70 × 8,702.20
  4. Step 4: Simplify right side
    25,341.40x = 330,820,224.54
  5. Step 5: Solve for x
    x = 330,820,224.54/25,341.40
  6. Step 6: Final answer
    x = 13,054.54

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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.