Home / 30,705.06-42,376.74-17,276.88

Finding the Fourth Proportional to 30,705.06, 42,376.74 and 17,276.88

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Solution

The fourth proportional to 30,705.06, 42,376.74 and 17,276.88 is: 23,844.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,705.06 : 42,376.74 = 17,276.88 : x
  2. Step 2: Convert to fraction form
    30,705.06/42,376.74 = 17,276.88/x
  3. Step 3: Cross multiply
    30,705.06x = 42,376.74 × 17,276.88
  4. Step 4: Simplify right side
    30,705.06x = 732,137,851.77
  5. Step 5: Solve for x
    x = 732,137,851.77/30,705.06
  6. Step 6: Final answer
    x = 23,844.21

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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.