Home / 30,278.75-41,785.32-16,852.40

Finding the Fourth Proportional to 30,278.75, 41,785.32 and 16,852.40

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Solution

The fourth proportional to 30,278.75, 41,785.32 and 16,852.40 is: 23,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.75 : 41,785.32 = 16,852.40 : x
  2. Step 2: Convert to fraction form
    30,278.75/41,785.32 = 16,852.40/x
  3. Step 3: Cross multiply
    30,278.75x = 41,785.32 × 16,852.40
  4. Step 4: Simplify right side
    30,278.75x = 704,182,926.77
  5. Step 5: Solve for x
    x = 704,182,926.77/30,278.75
  6. Step 6: Final answer
    x = 23,256.67

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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.