Home / 30,647.46-42,294.59-17,218.45

Finding the Fourth Proportional to 30,647.46, 42,294.59 and 17,218.45

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Solution

The fourth proportional to 30,647.46, 42,294.59 and 17,218.45 is: 23,762.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,647.46 : 42,294.59 = 17,218.45 : x
  2. Step 2: Convert to fraction form
    30,647.46/42,294.59 = 17,218.45/x
  3. Step 3: Cross multiply
    30,647.46x = 42,294.59 × 17,218.45
  4. Step 4: Simplify right side
    30,647.46x = 728,246,985.62
  5. Step 5: Solve for x
    x = 728,246,985.62/30,647.46
  6. Step 6: Final answer
    x = 23,762.07

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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.