Home / 20,030.87-27,590.83-13,970.37

Finding the Fourth Proportional to 20,030.87, 27,590.83 and 13,970.37

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Solution

The fourth proportional to 20,030.87, 27,590.83 and 13,970.37 is: 19,243.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.87 : 27,590.83 = 13,970.37 : x
  2. Step 2: Convert to fraction form
    20,030.87/27,590.83 = 13,970.37/x
  3. Step 3: Cross multiply
    20,030.87x = 27,590.83 × 13,970.37
  4. Step 4: Simplify right side
    20,030.87x = 385,454,172.25
  5. Step 5: Solve for x
    x = 385,454,172.25/20,030.87
  6. Step 6: Final answer
    x = 19,243.01

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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.