Home / 28,221.32-38,927.74-18,162.84

Finding the Fourth Proportional to 28,221.32, 38,927.74 and 18,162.84

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Solution

The fourth proportional to 28,221.32, 38,927.74 and 18,162.84 is: 25,053.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,221.32 : 38,927.74 = 18,162.84 : x
  2. Step 2: Convert to fraction form
    28,221.32/38,927.74 = 18,162.84/x
  3. Step 3: Cross multiply
    28,221.32x = 38,927.74 × 18,162.84
  4. Step 4: Simplify right side
    28,221.32x = 707,038,313.18
  5. Step 5: Solve for x
    x = 707,038,313.18/28,221.32
  6. Step 6: Final answer
    x = 25,053.34

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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.