Home / 30,645.42-45,781.86-19,462.56

Finding the Fourth Proportional to 30,645.42, 45,781.86 and 19,462.56

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Solution

The fourth proportional to 30,645.42, 45,781.86 and 19,462.56 is: 29,075.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,645.42 : 45,781.86 = 19,462.56 : x
  2. Step 2: Convert to fraction form
    30,645.42/45,781.86 = 19,462.56/x
  3. Step 3: Cross multiply
    30,645.42x = 45,781.86 × 19,462.56
  4. Step 4: Simplify right side
    30,645.42x = 891,032,197.16
  5. Step 5: Solve for x
    x = 891,032,197.16/30,645.42
  6. Step 6: Final answer
    x = 29,075.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.