Home / 31,407.21-43,342.29-17,259.75

Finding the Fourth Proportional to 31,407.21, 43,342.29 and 17,259.75

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Solution

The fourth proportional to 31,407.21, 43,342.29 and 17,259.75 is: 23,818.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,407.21 : 43,342.29 = 17,259.75 : x
  2. Step 2: Convert to fraction form
    31,407.21/43,342.29 = 17,259.75/x
  3. Step 3: Cross multiply
    31,407.21x = 43,342.29 × 17,259.75
  4. Step 4: Simplify right side
    31,407.21x = 748,077,089.83
  5. Step 5: Solve for x
    x = 748,077,089.83/31,407.21
  6. Step 6: Final answer
    x = 23,818.64

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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.