Home / 21,523.21-29,702.36-12,569.26

Finding the Fourth Proportional to 21,523.21, 29,702.36 and 12,569.26

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Solution

The fourth proportional to 21,523.21, 29,702.36 and 12,569.26 is: 17,345.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.21 : 29,702.36 = 12,569.26 : x
  2. Step 2: Convert to fraction form
    21,523.21/29,702.36 = 12,569.26/x
  3. Step 3: Cross multiply
    21,523.21x = 29,702.36 × 12,569.26
  4. Step 4: Simplify right side
    21,523.21x = 373,336,685.45
  5. Step 5: Solve for x
    x = 373,336,685.45/21,523.21
  6. Step 6: Final answer
    x = 17,345.77

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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.