Home / 30,330.78-41,846.61-16,899.45

Finding the Fourth Proportional to 30,330.78, 41,846.61 and 16,899.45

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Solution

The fourth proportional to 30,330.78, 41,846.61 and 16,899.45 is: 23,315.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.78 : 41,846.61 = 16,899.45 : x
  2. Step 2: Convert to fraction form
    30,330.78/41,846.61 = 16,899.45/x
  3. Step 3: Cross multiply
    30,330.78x = 41,846.61 × 16,899.45
  4. Step 4: Simplify right side
    30,330.78x = 707,184,693.36
  5. Step 5: Solve for x
    x = 707,184,693.36/30,330.78
  6. Step 6: Final answer
    x = 23,315.74

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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.