Home / 30,041.09-45,032.20-16,720.45

Finding the Fourth Proportional to 30,041.09, 45,032.20 and 16,720.45

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Solution

The fourth proportional to 30,041.09, 45,032.20 and 16,720.45 is: 25,064.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,041.09 : 45,032.20 = 16,720.45 : x
  2. Step 2: Convert to fraction form
    30,041.09/45,032.20 = 16,720.45/x
  3. Step 3: Cross multiply
    30,041.09x = 45,032.20 × 16,720.45
  4. Step 4: Simplify right side
    30,041.09x = 752,958,648.49
  5. Step 5: Solve for x
    x = 752,958,648.49/30,041.09
  6. Step 6: Final answer
    x = 25,064.29

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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.