Home / 23,118.05-31,903.14-12,507.92

Finding the Fourth Proportional to 23,118.05, 31,903.14 and 12,507.92

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Solution

The fourth proportional to 23,118.05, 31,903.14 and 12,507.92 is: 17,261.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,118.05 : 31,903.14 = 12,507.92 : x
  2. Step 2: Convert to fraction form
    23,118.05/31,903.14 = 12,507.92/x
  3. Step 3: Cross multiply
    23,118.05x = 31,903.14 × 12,507.92
  4. Step 4: Simplify right side
    23,118.05x = 399,041,763.35
  5. Step 5: Solve for x
    x = 399,041,763.35/23,118.05
  6. Step 6: Final answer
    x = 17,261.05

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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.