Home / 30,486.81-42,073.43-17,057.26

Finding the Fourth Proportional to 30,486.81, 42,073.43 and 17,057.26

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Solution

The fourth proportional to 30,486.81, 42,073.43 and 17,057.26 is: 23,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,486.81 : 42,073.43 = 17,057.26 : x
  2. Step 2: Convert to fraction form
    30,486.81/42,073.43 = 17,057.26/x
  3. Step 3: Cross multiply
    30,486.81x = 42,073.43 × 17,057.26
  4. Step 4: Simplify right side
    30,486.81x = 717,657,434.60
  5. Step 5: Solve for x
    x = 717,657,434.60/30,486.81
  6. Step 6: Final answer
    x = 23,539.93

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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.