Home / 19,957.87-27,547.61-13,991.01

Finding the Fourth Proportional to 19,957.87, 27,547.61 and 13,991.01

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Solution

The fourth proportional to 19,957.87, 27,547.61 and 13,991.01 is: 19,311.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,957.87 : 27,547.61 = 13,991.01 : x
  2. Step 2: Convert to fraction form
    19,957.87/27,547.61 = 13,991.01/x
  3. Step 3: Cross multiply
    19,957.87x = 27,547.61 × 13,991.01
  4. Step 4: Simplify right side
    19,957.87x = 385,418,886.99
  5. Step 5: Solve for x
    x = 385,418,886.99/19,957.87
  6. Step 6: Final answer
    x = 19,311.62

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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.