Home / 30,970.48-42,739.44-16,823.44

Finding the Fourth Proportional to 30,970.48, 42,739.44 and 16,823.44

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Solution

The fourth proportional to 30,970.48, 42,739.44 and 16,823.44 is: 23,216.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,970.48 : 42,739.44 = 16,823.44 : x
  2. Step 2: Convert to fraction form
    30,970.48/42,739.44 = 16,823.44/x
  3. Step 3: Cross multiply
    30,970.48x = 42,739.44 × 16,823.44
  4. Step 4: Simplify right side
    30,970.48x = 719,024,404.47
  5. Step 5: Solve for x
    x = 719,024,404.47/30,970.48
  6. Step 6: Final answer
    x = 23,216.44

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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.