Home / 26,314.31-39,437.44-19,688.51

Finding the Fourth Proportional to 26,314.31, 39,437.44 and 19,688.51

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Solution

The fourth proportional to 26,314.31, 39,437.44 and 19,688.51 is: 29,507.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,314.31 : 39,437.44 = 19,688.51 : x
  2. Step 2: Convert to fraction form
    26,314.31/39,437.44 = 19,688.51/x
  3. Step 3: Cross multiply
    26,314.31x = 39,437.44 × 19,688.51
  4. Step 4: Simplify right side
    26,314.31x = 776,464,431.81
  5. Step 5: Solve for x
    x = 776,464,431.81/26,314.31
  6. Step 6: Final answer
    x = 29,507.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.