Home / 25,645.32-35,403.06-20,323.08

Finding the Fourth Proportional to 25,645.32, 35,403.06 and 20,323.08

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Solution

The fourth proportional to 25,645.32, 35,403.06 and 20,323.08 is: 28,055.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,645.32 : 35,403.06 = 20,323.08 : x
  2. Step 2: Convert to fraction form
    25,645.32/35,403.06 = 20,323.08/x
  3. Step 3: Cross multiply
    25,645.32x = 35,403.06 × 20,323.08
  4. Step 4: Simplify right side
    25,645.32x = 719,499,220.62
  5. Step 5: Solve for x
    x = 719,499,220.62/25,645.32
  6. Step 6: Final answer
    x = 28,055.77

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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.