Home / 21,563.02-29,750.99-12,946.96

Finding the Fourth Proportional to 21,563.02, 29,750.99 and 12,946.96

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Solution

The fourth proportional to 21,563.02, 29,750.99 and 12,946.96 is: 17,863.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,563.02 : 29,750.99 = 12,946.96 : x
  2. Step 2: Convert to fraction form
    21,563.02/29,750.99 = 12,946.96/x
  3. Step 3: Cross multiply
    21,563.02x = 29,750.99 × 12,946.96
  4. Step 4: Simplify right side
    21,563.02x = 385,184,812.76
  5. Step 5: Solve for x
    x = 385,184,812.76/21,563.02
  6. Step 6: Final answer
    x = 17,863.22

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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.