Home / 23,118.12-31,903.01-12,507.75

Finding the Fourth Proportional to 23,118.12, 31,903.01 and 12,507.75

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Solution

The fourth proportional to 23,118.12, 31,903.01 and 12,507.75 is: 17,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.12 : 31,903.01 = 12,507.75 : x
  2. Step 2: Convert to fraction form
    23,118.12/31,903.01 = 12,507.75/x
  3. Step 3: Cross multiply
    23,118.12x = 31,903.01 × 12,507.75
  4. Step 4: Simplify right side
    23,118.12x = 399,034,822.51
  5. Step 5: Solve for x
    x = 399,034,822.51/23,118.12
  6. Step 6: Final answer
    x = 17,260.70

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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.