Home / 21,616.79-29,855.78-14,530.91

Finding the Fourth Proportional to 21,616.79, 29,855.78 and 14,530.91

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Solution

The fourth proportional to 21,616.79, 29,855.78 and 14,530.91 is: 20,069.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,616.79 : 29,855.78 = 14,530.91 : x
  2. Step 2: Convert to fraction form
    21,616.79/29,855.78 = 14,530.91/x
  3. Step 3: Cross multiply
    21,616.79x = 29,855.78 × 14,530.91
  4. Step 4: Simplify right side
    21,616.79x = 433,831,652.16
  5. Step 5: Solve for x
    x = 433,831,652.16/21,616.79
  6. Step 6: Final answer
    x = 20,069.20

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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.