Home / 21,648.60-29,880.72-14,113.62

Finding the Fourth Proportional to 21,648.60, 29,880.72 and 14,113.62

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Solution

The fourth proportional to 21,648.60, 29,880.72 and 14,113.62 is: 19,480.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,648.60 : 29,880.72 = 14,113.62 : x
  2. Step 2: Convert to fraction form
    21,648.60/29,880.72 = 14,113.62/x
  3. Step 3: Cross multiply
    21,648.60x = 29,880.72 × 14,113.62
  4. Step 4: Simplify right side
    21,648.60x = 421,725,127.41
  5. Step 5: Solve for x
    x = 421,725,127.41/21,648.60
  6. Step 6: Final answer
    x = 19,480.48

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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.