Home / 26,386.68-36,412.44-15,782.16

Finding the Fourth Proportional to 26,386.68, 36,412.44 and 15,782.16

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Solution

The fourth proportional to 26,386.68, 36,412.44 and 15,782.16 is: 21,778.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,386.68 : 36,412.44 = 15,782.16 : x
  2. Step 2: Convert to fraction form
    26,386.68/36,412.44 = 15,782.16/x
  3. Step 3: Cross multiply
    26,386.68x = 36,412.44 × 15,782.16
  4. Step 4: Simplify right side
    26,386.68x = 574,666,954.07
  5. Step 5: Solve for x
    x = 574,666,954.07/26,386.68
  6. Step 6: Final answer
    x = 21,778.68

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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.