Home / 22,384.08-30,888.90-13,429.80

Finding the Fourth Proportional to 22,384.08, 30,888.90 and 13,429.80

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Solution

The fourth proportional to 22,384.08, 30,888.90 and 13,429.80 is: 18,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,384.08 : 30,888.90 = 13,429.80 : x
  2. Step 2: Convert to fraction form
    22,384.08/30,888.90 = 13,429.80/x
  3. Step 3: Cross multiply
    22,384.08x = 30,888.90 × 13,429.80
  4. Step 4: Simplify right side
    22,384.08x = 414,831,749.22
  5. Step 5: Solve for x
    x = 414,831,749.22/22,384.08
  6. Step 6: Final answer
    x = 18,532.45

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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.