Home / 21,913.92-30,241.08-12,482.28

Finding the Fourth Proportional to 21,913.92, 30,241.08 and 12,482.28

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Solution

The fourth proportional to 21,913.92, 30,241.08 and 12,482.28 is: 17,225.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,913.92 : 30,241.08 = 12,482.28 : x
  2. Step 2: Convert to fraction form
    21,913.92/30,241.08 = 12,482.28/x
  3. Step 3: Cross multiply
    21,913.92x = 30,241.08 × 12,482.28
  4. Step 4: Simplify right side
    21,913.92x = 377,477,628.06
  5. Step 5: Solve for x
    x = 377,477,628.06/21,913.92
  6. Step 6: Final answer
    x = 17,225.47

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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.