Home / 25,627.40-35,369.28-15,021.28

Finding the Fourth Proportional to 25,627.40, 35,369.28 and 15,021.28

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Solution

The fourth proportional to 25,627.40, 35,369.28 and 15,021.28 is: 20,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,627.40 : 35,369.28 = 15,021.28 : x
  2. Step 2: Convert to fraction form
    25,627.40/35,369.28 = 15,021.28/x
  3. Step 3: Cross multiply
    25,627.40x = 35,369.28 × 15,021.28
  4. Step 4: Simplify right side
    25,627.40x = 531,291,858.28
  5. Step 5: Solve for x
    x = 531,291,858.28/25,627.40
  6. Step 6: Final answer
    x = 20,731.40

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1.5x scale

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.