Home / 22,038.45-30,416.97-12,478.89

Finding the Fourth Proportional to 22,038.45, 30,416.97 and 12,478.89

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Solution

The fourth proportional to 22,038.45, 30,416.97 and 12,478.89 is: 17,223.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,038.45 : 30,416.97 = 12,478.89 : x
  2. Step 2: Convert to fraction form
    22,038.45/30,416.97 = 12,478.89/x
  3. Step 3: Cross multiply
    22,038.45x = 30,416.97 × 12,478.89
  4. Step 4: Simplify right side
    22,038.45x = 379,570,022.76
  5. Step 5: Solve for x
    x = 379,570,022.76/22,038.45
  6. Step 6: Final answer
    x = 17,223.08

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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.