Home / 15,353.35-21,136.43-14,648.04

Finding the Fourth Proportional to 15,353.35, 21,136.43 and 14,648.04

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Solution

The fourth proportional to 15,353.35, 21,136.43 and 14,648.04 is: 20,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,353.35 : 21,136.43 = 14,648.04 : x
  2. Step 2: Convert to fraction form
    15,353.35/21,136.43 = 14,648.04/x
  3. Step 3: Cross multiply
    15,353.35x = 21,136.43 × 14,648.04
  4. Step 4: Simplify right side
    15,353.35x = 309,607,308.72
  5. Step 5: Solve for x
    x = 309,607,308.72/15,353.35
  6. Step 6: Final answer
    x = 20,165.46

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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.