Home / 21,325.60-29,441.34-14,788.90

Finding the Fourth Proportional to 21,325.60, 29,441.34 and 14,788.90

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Solution

The fourth proportional to 21,325.60, 29,441.34 and 14,788.90 is: 20,417.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,325.60 : 29,441.34 = 14,788.90 : x
  2. Step 2: Convert to fraction form
    21,325.60/29,441.34 = 14,788.90/x
  3. Step 3: Cross multiply
    21,325.60x = 29,441.34 × 14,788.90
  4. Step 4: Simplify right side
    21,325.60x = 435,405,033.13
  5. Step 5: Solve for x
    x = 435,405,033.13/21,325.60
  6. Step 6: Final answer
    x = 20,417.01

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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.