Home / 22,182.80-30,617.40-12,756.80

Finding the Fourth Proportional to 22,182.80, 30,617.40 and 12,756.80

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Solution

The fourth proportional to 22,182.80, 30,617.40 and 12,756.80 is: 17,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,182.80 : 30,617.40 = 12,756.80 : x
  2. Step 2: Convert to fraction form
    22,182.80/30,617.40 = 12,756.80/x
  3. Step 3: Cross multiply
    22,182.80x = 30,617.40 × 12,756.80
  4. Step 4: Simplify right side
    22,182.80x = 390,580,048.32
  5. Step 5: Solve for x
    x = 390,580,048.32/22,182.80
  6. Step 6: Final answer
    x = 17,607.34

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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.