Home / 30,057.12-41,479.56-16,628.64

Finding the Fourth Proportional to 30,057.12, 41,479.56 and 16,628.64

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Solution

The fourth proportional to 30,057.12, 41,479.56 and 16,628.64 is: 22,947.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.12 : 41,479.56 = 16,628.64 : x
  2. Step 2: Convert to fraction form
    30,057.12/41,479.56 = 16,628.64/x
  3. Step 3: Cross multiply
    30,057.12x = 41,479.56 × 16,628.64
  4. Step 4: Simplify right side
    30,057.12x = 689,748,670.60
  5. Step 5: Solve for x
    x = 689,748,670.60/30,057.12
  6. Step 6: Final answer
    x = 22,947.93

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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.