Home / 25,686.02-38,528.93-8,157.22

Finding the Fourth Proportional to 25,686.02, 38,528.93 and 8,157.22

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Solution

The fourth proportional to 25,686.02, 38,528.93 and 8,157.22 is: 12,235.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,686.02 : 38,528.93 = 8,157.22 : x
  2. Step 2: Convert to fraction form
    25,686.02/38,528.93 = 8,157.22/x
  3. Step 3: Cross multiply
    25,686.02x = 38,528.93 × 8,157.22
  4. Step 4: Simplify right side
    25,686.02x = 314,288,882.45
  5. Step 5: Solve for x
    x = 314,288,882.45/25,686.02
  6. Step 6: Final answer
    x = 12,235.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.