Home / 14,281.02-21,420.33-4,921.02

Finding the Fourth Proportional to 14,281.02, 21,420.33 and 4,921.02

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Solution

The fourth proportional to 14,281.02, 21,420.33 and 4,921.02 is: 7,381.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,281.02 : 21,420.33 = 4,921.02 : x
  2. Step 2: Convert to fraction form
    14,281.02/21,420.33 = 4,921.02/x
  3. Step 3: Cross multiply
    14,281.02x = 21,420.33 × 4,921.02
  4. Step 4: Simplify right side
    14,281.02x = 105,409,872.34
  5. Step 5: Solve for x
    x = 105,409,872.34/14,281.02
  6. Step 6: Final answer
    x = 7,381.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.