Home / 30,483.48-42,070.22-19,161.52

Finding the Fourth Proportional to 30,483.48, 42,070.22 and 19,161.52

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Solution

The fourth proportional to 30,483.48, 42,070.22 and 19,161.52 is: 26,444.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.48 : 42,070.22 = 19,161.52 : x
  2. Step 2: Convert to fraction form
    30,483.48/42,070.22 = 19,161.52/x
  3. Step 3: Cross multiply
    30,483.48x = 42,070.22 × 19,161.52
  4. Step 4: Simplify right side
    30,483.48x = 806,129,361.93
  5. Step 5: Solve for x
    x = 806,129,361.93/30,483.48
  6. Step 6: Final answer
    x = 26,444.79

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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.