Home / 30,488.05-45,700.89-20,628.37

Finding the Fourth Proportional to 30,488.05, 45,700.89 and 20,628.37

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Solution

The fourth proportional to 30,488.05, 45,700.89 and 20,628.37 is: 30,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,488.05 : 45,700.89 = 20,628.37 : x
  2. Step 2: Convert to fraction form
    30,488.05/45,700.89 = 20,628.37/x
  3. Step 3: Cross multiply
    30,488.05x = 45,700.89 × 20,628.37
  4. Step 4: Simplify right side
    30,488.05x = 942,734,868.25
  5. Step 5: Solve for x
    x = 942,734,868.25/30,488.05
  6. Step 6: Final answer
    x = 30,921.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.