Home / 25,740.20-35,521.75-15,130

Finding the Fourth Proportional to 25,740.20, 35,521.75 and 15,130

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Solution

The fourth proportional to 25,740.20, 35,521.75 and 15,130 is: 20,879.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,740.20 : 35,521.75 = 15,130 : x
  2. Step 2: Convert to fraction form
    25,740.20/35,521.75 = 15,130/x
  3. Step 3: Cross multiply
    25,740.20x = 35,521.75 × 15,130
  4. Step 4: Simplify right side
    25,740.20x = 537,444,077.50
  5. Step 5: Solve for x
    x = 537,444,077.50/25,740.20
  6. Step 6: Final answer
    x = 20,879.56

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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.