Home / 21,099.23-29,086.87-14,376.23

Finding the Fourth Proportional to 21,099.23, 29,086.87 and 14,376.23

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Solution

The fourth proportional to 21,099.23, 29,086.87 and 14,376.23 is: 19,818.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,099.23 : 29,086.87 = 14,376.23 : x
  2. Step 2: Convert to fraction form
    21,099.23/29,086.87 = 14,376.23/x
  3. Step 3: Cross multiply
    21,099.23x = 29,086.87 × 14,376.23
  4. Step 4: Simplify right side
    21,099.23x = 418,159,315.78
  5. Step 5: Solve for x
    x = 418,159,315.78/21,099.23
  6. Step 6: Final answer
    x = 19,818.70

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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.