Home / 25,789.32-38,509.35-20,464.53

Finding the Fourth Proportional to 25,789.32, 38,509.35 and 20,464.53

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Solution

The fourth proportional to 25,789.32, 38,509.35 and 20,464.53 is: 30,558.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,789.32 : 38,509.35 = 20,464.53 : x
  2. Step 2: Convert to fraction form
    25,789.32/38,509.35 = 20,464.53/x
  3. Step 3: Cross multiply
    25,789.32x = 38,509.35 × 20,464.53
  4. Step 4: Simplify right side
    25,789.32x = 788,075,748.36
  5. Step 5: Solve for x
    x = 788,075,748.36/25,789.32
  6. Step 6: Final answer
    x = 30,558.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.