Home / 21,295.04-31,776.01-19,081.24

Finding the Fourth Proportional to 21,295.04, 31,776.01 and 19,081.24

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Solution

The fourth proportional to 21,295.04, 31,776.01 and 19,081.24 is: 28,472.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295.04 : 31,776.01 = 19,081.24 : x
  2. Step 2: Convert to fraction form
    21,295.04/31,776.01 = 19,081.24/x
  3. Step 3: Cross multiply
    21,295.04x = 31,776.01 × 19,081.24
  4. Step 4: Simplify right side
    21,295.04x = 606,325,673.05
  5. Step 5: Solve for x
    x = 606,325,673.05/21,295.04
  6. Step 6: Final answer
    x = 28,472.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.