Home / 30,368.32-41,908.08-16,939.72

Finding the Fourth Proportional to 30,368.32, 41,908.08 and 16,939.72

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Solution

The fourth proportional to 30,368.32, 41,908.08 and 16,939.72 is: 23,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,368.32 : 41,908.08 = 16,939.72 : x
  2. Step 2: Convert to fraction form
    30,368.32/41,908.08 = 16,939.72/x
  3. Step 3: Cross multiply
    30,368.32x = 41,908.08 × 16,939.72
  4. Step 4: Simplify right side
    30,368.32x = 709,911,140.94
  5. Step 5: Solve for x
    x = 709,911,140.94/30,368.32
  6. Step 6: Final answer
    x = 23,376.70

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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.