Home / 25,985.12-35,871.46-15,228.50

Finding the Fourth Proportional to 25,985.12, 35,871.46 and 15,228.50

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Solution

The fourth proportional to 25,985.12, 35,871.46 and 15,228.50 is: 21,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,985.12 : 35,871.46 = 15,228.50 : x
  2. Step 2: Convert to fraction form
    25,985.12/35,871.46 = 15,228.50/x
  3. Step 3: Cross multiply
    25,985.12x = 35,871.46 × 15,228.50
  4. Step 4: Simplify right side
    25,985.12x = 546,268,528.61
  5. Step 5: Solve for x
    x = 546,268,528.61/25,985.12
  6. Step 6: Final answer
    x = 21,022.36

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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.