Home / 19,420.16-26,802.44-11,356.20

Finding the Fourth Proportional to 19,420.16, 26,802.44 and 11,356.20

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Solution

The fourth proportional to 19,420.16, 26,802.44 and 11,356.20 is: 15,673.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,420.16 : 26,802.44 = 11,356.20 : x
  2. Step 2: Convert to fraction form
    19,420.16/26,802.44 = 11,356.20/x
  3. Step 3: Cross multiply
    19,420.16x = 26,802.44 × 11,356.20
  4. Step 4: Simplify right side
    19,420.16x = 304,373,918.81
  5. Step 5: Solve for x
    x = 304,373,918.81/19,420.16
  6. Step 6: Final answer
    x = 15,673.09

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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.