Home / 25,128.06-34,681.20-18,786.48

Finding the Fourth Proportional to 25,128.06, 34,681.20 and 18,786.48

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Solution

The fourth proportional to 25,128.06, 34,681.20 and 18,786.48 is: 25,928.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,128.06 : 34,681.20 = 18,786.48 : x
  2. Step 2: Convert to fraction form
    25,128.06/34,681.20 = 18,786.48/x
  3. Step 3: Cross multiply
    25,128.06x = 34,681.20 × 18,786.48
  4. Step 4: Simplify right side
    25,128.06x = 651,537,670.18
  5. Step 5: Solve for x
    x = 651,537,670.18/25,128.06
  6. Step 6: Final answer
    x = 25,928.69

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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.