Home / 25,221.08-37,809.07-10,420.56

Finding the Fourth Proportional to 25,221.08, 37,809.07 and 10,420.56

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Solution

The fourth proportional to 25,221.08, 37,809.07 and 10,420.56 is: 15,621.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,221.08 : 37,809.07 = 10,420.56 : x
  2. Step 2: Convert to fraction form
    25,221.08/37,809.07 = 10,420.56/x
  3. Step 3: Cross multiply
    25,221.08x = 37,809.07 × 10,420.56
  4. Step 4: Simplify right side
    25,221.08x = 393,991,656.43
  5. Step 5: Solve for x
    x = 393,991,656.43/25,221.08
  6. Step 6: Final answer
    x = 15,621.52

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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.