Home / 30,705.21-42,374.02-17,276.95

Finding the Fourth Proportional to 30,705.21, 42,374.02 and 17,276.95

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Solution

The fourth proportional to 30,705.21, 42,374.02 and 17,276.95 is: 23,842.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,705.21 : 42,374.02 = 17,276.95 : x
  2. Step 2: Convert to fraction form
    30,705.21/42,374.02 = 17,276.95/x
  3. Step 3: Cross multiply
    30,705.21x = 42,374.02 × 17,276.95
  4. Step 4: Simplify right side
    30,705.21x = 732,093,701.54
  5. Step 5: Solve for x
    x = 732,093,701.54/30,705.21
  6. Step 6: Final answer
    x = 23,842.65

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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.