Home / 25,280.64-34,871.04-15,344.64

Finding the Fourth Proportional to 25,280.64, 34,871.04 and 15,344.64

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Solution

The fourth proportional to 25,280.64, 34,871.04 and 15,344.64 is: 21,165.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,280.64 : 34,871.04 = 15,344.64 : x
  2. Step 2: Convert to fraction form
    25,280.64/34,871.04 = 15,344.64/x
  3. Step 3: Cross multiply
    25,280.64x = 34,871.04 × 15,344.64
  4. Step 4: Simplify right side
    25,280.64x = 535,083,555.23
  5. Step 5: Solve for x
    x = 535,083,555.23/25,280.64
  6. Step 6: Final answer
    x = 21,165.74

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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.