Home / 22,388.36-30,894.71-12,315.17

Finding the Fourth Proportional to 22,388.36, 30,894.71 and 12,315.17

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Solution

The fourth proportional to 22,388.36, 30,894.71 and 12,315.17 is: 16,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,388.36 : 30,894.71 = 12,315.17 : x
  2. Step 2: Convert to fraction form
    22,388.36/30,894.71 = 12,315.17/x
  3. Step 3: Cross multiply
    22,388.36x = 30,894.71 × 12,315.17
  4. Step 4: Simplify right side
    22,388.36x = 380,473,482.07
  5. Step 5: Solve for x
    x = 380,473,482.07/22,388.36
  6. Step 6: Final answer
    x = 16,994.25

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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.