Home / 22,214.68-30,656.46-12,782.68

Finding the Fourth Proportional to 22,214.68, 30,656.46 and 12,782.68

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Solution

The fourth proportional to 22,214.68, 30,656.46 and 12,782.68 is: 17,640.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,214.68 : 30,656.46 = 12,782.68 : x
  2. Step 2: Convert to fraction form
    22,214.68/30,656.46 = 12,782.68/x
  3. Step 3: Cross multiply
    22,214.68x = 30,656.46 × 12,782.68
  4. Step 4: Simplify right side
    22,214.68x = 391,871,718.11
  5. Step 5: Solve for x
    x = 391,871,718.11/22,214.68
  6. Step 6: Final answer
    x = 17,640.21

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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.