Home / 21,420.32-29,537.52-14,348.32

Finding the Fourth Proportional to 21,420.32, 29,537.52 and 14,348.32

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Solution

The fourth proportional to 21,420.32, 29,537.52 and 14,348.32 is: 19,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420.32 : 29,537.52 = 14,348.32 : x
  2. Step 2: Convert to fraction form
    21,420.32/29,537.52 = 14,348.32/x
  3. Step 3: Cross multiply
    21,420.32x = 29,537.52 × 14,348.32
  4. Step 4: Simplify right side
    21,420.32x = 423,813,788.97
  5. Step 5: Solve for x
    x = 423,813,788.97/21,420.32
  6. Step 6: Final answer
    x = 19,785.60

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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.