Home / 30,551.31-42,148.62-17,802.59

Finding the Fourth Proportional to 30,551.31, 42,148.62 and 17,802.59

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Solution

The fourth proportional to 30,551.31, 42,148.62 and 17,802.59 is: 24,560.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,551.31 : 42,148.62 = 17,802.59 : x
  2. Step 2: Convert to fraction form
    30,551.31/42,148.62 = 17,802.59/x
  3. Step 3: Cross multiply
    30,551.31x = 42,148.62 × 17,802.59
  4. Step 4: Simplify right side
    30,551.31x = 750,354,390.18
  5. Step 5: Solve for x
    x = 750,354,390.18/30,551.31
  6. Step 6: Final answer
    x = 24,560.47

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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.