Home / 30,368.48-41,908.56-16,939.39

Finding the Fourth Proportional to 30,368.48, 41,908.56 and 16,939.39

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Solution

The fourth proportional to 30,368.48, 41,908.56 and 16,939.39 is: 23,376.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.48 : 41,908.56 = 16,939.39 : x
  2. Step 2: Convert to fraction form
    30,368.48/41,908.56 = 16,939.39/x
  3. Step 3: Cross multiply
    30,368.48x = 41,908.56 × 16,939.39
  4. Step 4: Simplify right side
    30,368.48x = 709,905,274.98
  5. Step 5: Solve for x
    x = 709,905,274.98/30,368.48
  6. Step 6: Final answer
    x = 23,376.39

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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.