Home / 30,020.29-45,030.37-28,193.46

Finding the Fourth Proportional to 30,020.29, 45,030.37 and 28,193.46

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Solution

The fourth proportional to 30,020.29, 45,030.37 and 28,193.46 is: 42,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020.29 : 45,030.37 = 28,193.46 : x
  2. Step 2: Convert to fraction form
    30,020.29/45,030.37 = 28,193.46/x
  3. Step 3: Cross multiply
    30,020.29x = 45,030.37 × 28,193.46
  4. Step 4: Simplify right side
    30,020.29x = 1,269,561,787.56
  5. Step 5: Solve for x
    x = 1,269,561,787.56/30,020.29
  6. Step 6: Final answer
    x = 42,290.13

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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.