Home / 25,702.24-38,447.76-20,518.24

Finding the Fourth Proportional to 25,702.24, 38,447.76 and 20,518.24

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Solution

The fourth proportional to 25,702.24, 38,447.76 and 20,518.24 is: 30,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,702.24 : 38,447.76 = 20,518.24 : x
  2. Step 2: Convert to fraction form
    25,702.24/38,447.76 = 20,518.24/x
  3. Step 3: Cross multiply
    25,702.24x = 38,447.76 × 20,518.24
  4. Step 4: Simplify right side
    25,702.24x = 788,880,367.14
  5. Step 5: Solve for x
    x = 788,880,367.14/25,702.24
  6. Step 6: Final answer
    x = 30,693.06

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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.