Home / 28,005.65-38,626.44-19,038.03

Finding the Fourth Proportional to 28,005.65, 38,626.44 and 19,038.03

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Solution

The fourth proportional to 28,005.65, 38,626.44 and 19,038.03 is: 26,257.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,005.65 : 38,626.44 = 19,038.03 : x
  2. Step 2: Convert to fraction form
    28,005.65/38,626.44 = 19,038.03/x
  3. Step 3: Cross multiply
    28,005.65x = 38,626.44 × 19,038.03
  4. Step 4: Simplify right side
    28,005.65x = 735,371,323.51
  5. Step 5: Solve for x
    x = 735,371,323.51/28,005.65
  6. Step 6: Final answer
    x = 26,257.97

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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.