Home / 28,809.72-39,746.70-19,363.32

Finding the Fourth Proportional to 28,809.72, 39,746.70 and 19,363.32

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Solution

The fourth proportional to 28,809.72, 39,746.70 and 19,363.32 is: 26,714.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,809.72 : 39,746.70 = 19,363.32 : x
  2. Step 2: Convert to fraction form
    28,809.72/39,746.70 = 19,363.32/x
  3. Step 3: Cross multiply
    28,809.72x = 39,746.70 × 19,363.32
  4. Step 4: Simplify right side
    28,809.72x = 769,628,071.04
  5. Step 5: Solve for x
    x = 769,628,071.04/28,809.72
  6. Step 6: Final answer
    x = 26,714.18

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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.