Home / 21,437.45-29,580.87-12,363.15

Finding the Fourth Proportional to 21,437.45, 29,580.87 and 12,363.15

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Solution

The fourth proportional to 21,437.45, 29,580.87 and 12,363.15 is: 17,059.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.45 : 29,580.87 = 12,363.15 : x
  2. Step 2: Convert to fraction form
    21,437.45/29,580.87 = 12,363.15/x
  3. Step 3: Cross multiply
    21,437.45x = 29,580.87 × 12,363.15
  4. Step 4: Simplify right side
    21,437.45x = 365,712,732.94
  5. Step 5: Solve for x
    x = 365,712,732.94/21,437.45
  6. Step 6: Final answer
    x = 17,059.53

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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.