Home / 20,475.86-30,710.37-5,686.28

Finding the Fourth Proportional to 20,475.86, 30,710.37 and 5,686.28

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Solution

The fourth proportional to 20,475.86, 30,710.37 and 5,686.28 is: 8,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475.86 : 30,710.37 = 5,686.28 : x
  2. Step 2: Convert to fraction form
    20,475.86/30,710.37 = 5,686.28/x
  3. Step 3: Cross multiply
    20,475.86x = 30,710.37 × 5,686.28
  4. Step 4: Simplify right side
    20,475.86x = 174,627,647.56
  5. Step 5: Solve for x
    x = 174,627,647.56/20,475.86
  6. Step 6: Final answer
    x = 8,528.46

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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.