Home / 25,739.04-35,511.84-15,129.12

Finding the Fourth Proportional to 25,739.04, 35,511.84 and 15,129.12

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Solution

The fourth proportional to 25,739.04, 35,511.84 and 15,129.12 is: 20,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,739.04 : 35,511.84 = 15,129.12 : x
  2. Step 2: Convert to fraction form
    25,739.04/35,511.84 = 15,129.12/x
  3. Step 3: Cross multiply
    25,739.04x = 35,511.84 × 15,129.12
  4. Step 4: Simplify right side
    25,739.04x = 537,262,888.78
  5. Step 5: Solve for x
    x = 537,262,888.78/25,739.04
  6. Step 6: Final answer
    x = 20,873.46

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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.