Home / 30,814.68-42,523.20-17,386.32

Finding the Fourth Proportional to 30,814.68, 42,523.20 and 17,386.32

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Solution

The fourth proportional to 30,814.68, 42,523.20 and 17,386.32 is: 23,992.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,814.68 : 42,523.20 = 17,386.32 : x
  2. Step 2: Convert to fraction form
    30,814.68/42,523.20 = 17,386.32/x
  3. Step 3: Cross multiply
    30,814.68x = 42,523.20 × 17,386.32
  4. Step 4: Simplify right side
    30,814.68x = 739,321,962.62
  5. Step 5: Solve for x
    x = 739,321,962.62/30,814.68
  6. Step 6: Final answer
    x = 23,992.52

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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.