Home / 29,557.44-40,788-16,128.36

Finding the Fourth Proportional to 29,557.44, 40,788 and 16,128.36

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Solution

The fourth proportional to 29,557.44, 40,788 and 16,128.36 is: 22,256.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,557.44 : 40,788 = 16,128.36 : x
  2. Step 2: Convert to fraction form
    29,557.44/40,788 = 16,128.36/x
  3. Step 3: Cross multiply
    29,557.44x = 40,788 × 16,128.36
  4. Step 4: Simplify right side
    29,557.44x = 657,843,547.68
  5. Step 5: Solve for x
    x = 657,843,547.68/29,557.44
  6. Step 6: Final answer
    x = 22,256.45

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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.