Home / 25,515.81-35,207.93-14,185.40

Finding the Fourth Proportional to 25,515.81, 35,207.93 and 14,185.40

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Solution

The fourth proportional to 25,515.81, 35,207.93 and 14,185.40 is: 19,573.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.81 : 35,207.93 = 14,185.40 : x
  2. Step 2: Convert to fraction form
    25,515.81/35,207.93 = 14,185.40/x
  3. Step 3: Cross multiply
    25,515.81x = 35,207.93 × 14,185.40
  4. Step 4: Simplify right side
    25,515.81x = 499,438,429.65
  5. Step 5: Solve for x
    x = 499,438,429.65/25,515.81
  6. Step 6: Final answer
    x = 19,573.69

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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.