Home / 20,477.95-28,259.62-11,525.58

Finding the Fourth Proportional to 20,477.95, 28,259.62 and 11,525.58

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Solution

The fourth proportional to 20,477.95, 28,259.62 and 11,525.58 is: 15,905.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.95 : 28,259.62 = 11,525.58 : x
  2. Step 2: Convert to fraction form
    20,477.95/28,259.62 = 11,525.58/x
  3. Step 3: Cross multiply
    20,477.95x = 28,259.62 × 11,525.58
  4. Step 4: Simplify right side
    20,477.95x = 325,708,482.27
  5. Step 5: Solve for x
    x = 325,708,482.27/20,477.95
  6. Step 6: Final answer
    x = 15,905.33

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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.