Home / 22,459.32-30,995.96-12,900.47

Finding the Fourth Proportional to 22,459.32, 30,995.96 and 12,900.47

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Solution

The fourth proportional to 22,459.32, 30,995.96 and 12,900.47 is: 17,803.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,459.32 : 30,995.96 = 12,900.47 : x
  2. Step 2: Convert to fraction form
    22,459.32/30,995.96 = 12,900.47/x
  3. Step 3: Cross multiply
    22,459.32x = 30,995.96 × 12,900.47
  4. Step 4: Simplify right side
    22,459.32x = 399,862,232.62
  5. Step 5: Solve for x
    x = 399,862,232.62/22,459.32
  6. Step 6: Final answer
    x = 17,803.84

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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.