Home / 25,145.42-34,700.69-13,815.64

Finding the Fourth Proportional to 25,145.42, 34,700.69 and 13,815.64

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Solution

The fourth proportional to 25,145.42, 34,700.69 and 13,815.64 is: 19,065.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.42 : 34,700.69 = 13,815.64 : x
  2. Step 2: Convert to fraction form
    25,145.42/34,700.69 = 13,815.64/x
  3. Step 3: Cross multiply
    25,145.42x = 34,700.69 × 13,815.64
  4. Step 4: Simplify right side
    25,145.42x = 479,412,318.71
  5. Step 5: Solve for x
    x = 479,412,318.71/25,145.42
  6. Step 6: Final answer
    x = 19,065.60

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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.