Home / 25,424.08-35,101.60-20,719.60

Finding the Fourth Proportional to 25,424.08, 35,101.60 and 20,719.60

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Solution

The fourth proportional to 25,424.08, 35,101.60 and 20,719.60 is: 28,606.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,424.08 : 35,101.60 = 20,719.60 : x
  2. Step 2: Convert to fraction form
    25,424.08/35,101.60 = 20,719.60/x
  3. Step 3: Cross multiply
    25,424.08x = 35,101.60 × 20,719.60
  4. Step 4: Simplify right side
    25,424.08x = 727,291,111.36
  5. Step 5: Solve for x
    x = 727,291,111.36/25,424.08
  6. Step 6: Final answer
    x = 28,606.39

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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.