Home / 19,705.04-27,192.95-12,631.48

Finding the Fourth Proportional to 19,705.04, 27,192.95 and 12,631.48

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Solution

The fourth proportional to 19,705.04, 27,192.95 and 12,631.48 is: 17,431.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.04 : 27,192.95 = 12,631.48 : x
  2. Step 2: Convert to fraction form
    19,705.04/27,192.95 = 12,631.48/x
  3. Step 3: Cross multiply
    19,705.04x = 27,192.95 × 12,631.48
  4. Step 4: Simplify right side
    19,705.04x = 343,487,120.29
  5. Step 5: Solve for x
    x = 343,487,120.29/19,705.04
  6. Step 6: Final answer
    x = 17,431.44

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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.