Home / 55,323.20-83,017.20-20,266.40

Finding the Fourth Proportional to 55,323.20, 83,017.20 and 20,266.40

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Solution

The fourth proportional to 55,323.20, 83,017.20 and 20,266.40 is: 30,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,323.20 : 83,017.20 = 20,266.40 : x
  2. Step 2: Convert to fraction form
    55,323.20/83,017.20 = 20,266.40/x
  3. Step 3: Cross multiply
    55,323.20x = 83,017.20 × 20,266.40
  4. Step 4: Simplify right side
    55,323.20x = 1,682,459,782.08
  5. Step 5: Solve for x
    x = 1,682,459,782.08/55,323.20
  6. Step 6: Final answer
    x = 30,411.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.