Home / 29,685.28-40,970.32-16,938.44

Finding the Fourth Proportional to 29,685.28, 40,970.32 and 16,938.44

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Solution

The fourth proportional to 29,685.28, 40,970.32 and 16,938.44 is: 23,377.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,685.28 : 40,970.32 = 16,938.44 : x
  2. Step 2: Convert to fraction form
    29,685.28/40,970.32 = 16,938.44/x
  3. Step 3: Cross multiply
    29,685.28x = 40,970.32 × 16,938.44
  4. Step 4: Simplify right side
    29,685.28x = 693,973,307.10
  5. Step 5: Solve for x
    x = 693,973,307.10/29,685.28
  6. Step 6: Final answer
    x = 23,377.69

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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.