Home / 43,386.31-65,032.89-18,405.28

Finding the Fourth Proportional to 43,386.31, 65,032.89 and 18,405.28

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Solution

The fourth proportional to 43,386.31, 65,032.89 and 18,405.28 is: 27,588.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,386.31 : 65,032.89 = 18,405.28 : x
  2. Step 2: Convert to fraction form
    43,386.31/65,032.89 = 18,405.28/x
  3. Step 3: Cross multiply
    43,386.31x = 65,032.89 × 18,405.28
  4. Step 4: Simplify right side
    43,386.31x = 1,196,948,549.66
  5. Step 5: Solve for x
    x = 1,196,948,549.66/43,386.31
  6. Step 6: Final answer
    x = 27,588.16

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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.