Home / 19,942.40-29,913.60-16,443.20

Finding the Fourth Proportional to 19,942.40, 29,913.60 and 16,443.20

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Solution

The fourth proportional to 19,942.40, 29,913.60 and 16,443.20 is: 24,664.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942.40 : 29,913.60 = 16,443.20 : x
  2. Step 2: Convert to fraction form
    19,942.40/29,913.60 = 16,443.20/x
  3. Step 3: Cross multiply
    19,942.40x = 29,913.60 × 16,443.20
  4. Step 4: Simplify right side
    19,942.40x = 491,875,307.52
  5. Step 5: Solve for x
    x = 491,875,307.52/19,942.40
  6. Step 6: Final answer
    x = 24,664.80

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1.5x scale

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.