Home / 19,943.18-27,521.18-10,990.46

Finding the Fourth Proportional to 19,943.18, 27,521.18 and 10,990.46

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Solution

The fourth proportional to 19,943.18, 27,521.18 and 10,990.46 is: 15,166.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,943.18 : 27,521.18 = 10,990.46 : x
  2. Step 2: Convert to fraction form
    19,943.18/27,521.18 = 10,990.46/x
  3. Step 3: Cross multiply
    19,943.18x = 27,521.18 × 10,990.46
  4. Step 4: Simplify right side
    19,943.18x = 302,470,276.60
  5. Step 5: Solve for x
    x = 302,470,276.60/19,943.18
  6. Step 6: Final answer
    x = 15,166.60

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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.