Home / 22,303.46-30,779.34-12,612.18

Finding the Fourth Proportional to 22,303.46, 30,779.34 and 12,612.18

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Solution

The fourth proportional to 22,303.46, 30,779.34 and 12,612.18 is: 17,405.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,303.46 : 30,779.34 = 12,612.18 : x
  2. Step 2: Convert to fraction form
    22,303.46/30,779.34 = 12,612.18/x
  3. Step 3: Cross multiply
    22,303.46x = 30,779.34 × 12,612.18
  4. Step 4: Simplify right side
    22,303.46x = 388,194,576.36
  5. Step 5: Solve for x
    x = 388,194,576.36/22,303.46
  6. Step 6: Final answer
    x = 17,405.13

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Half scale
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Double scale
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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.