Home / 25,146.79-34,702.43-13,661.60

Finding the Fourth Proportional to 25,146.79, 34,702.43 and 13,661.60

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Solution

The fourth proportional to 25,146.79, 34,702.43 and 13,661.60 is: 18,852.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,146.79 : 34,702.43 = 13,661.60 : x
  2. Step 2: Convert to fraction form
    25,146.79/34,702.43 = 13,661.60/x
  3. Step 3: Cross multiply
    25,146.79x = 34,702.43 × 13,661.60
  4. Step 4: Simplify right side
    25,146.79x = 474,090,649.38
  5. Step 5: Solve for x
    x = 474,090,649.38/25,146.79
  6. Step 6: Final answer
    x = 18,852.93

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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.