Home / 22,360.15-30,856.95-12,289.22

Finding the Fourth Proportional to 22,360.15, 30,856.95 and 12,289.22

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Solution

The fourth proportional to 22,360.15, 30,856.95 and 12,289.22 is: 16,959.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,360.15 : 30,856.95 = 12,289.22 : x
  2. Step 2: Convert to fraction form
    22,360.15/30,856.95 = 12,289.22/x
  3. Step 3: Cross multiply
    22,360.15x = 30,856.95 × 12,289.22
  4. Step 4: Simplify right side
    22,360.15x = 379,207,808.51
  5. Step 5: Solve for x
    x = 379,207,808.51/22,360.15
  6. Step 6: Final answer
    x = 16,959.09

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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.