Home / 30,366.19-41,905.40-16,938.32

Finding the Fourth Proportional to 30,366.19, 41,905.40 and 16,938.32

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Solution

The fourth proportional to 30,366.19, 41,905.40 and 16,938.32 is: 23,374.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,366.19 : 41,905.40 = 16,938.32 : x
  2. Step 2: Convert to fraction form
    30,366.19/41,905.40 = 16,938.32/x
  3. Step 3: Cross multiply
    30,366.19x = 41,905.40 × 16,938.32
  4. Step 4: Simplify right side
    30,366.19x = 709,807,074.93
  5. Step 5: Solve for x
    x = 709,807,074.93/30,366.19
  6. Step 6: Final answer
    x = 23,374.91

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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.