Home / 36,038.40-54,089.60-21,228.80

Finding the Fourth Proportional to 36,038.40, 54,089.60 and 21,228.80

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Solution

The fourth proportional to 36,038.40, 54,089.60 and 21,228.80 is: 31,862.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,038.40 : 54,089.60 = 21,228.80 : x
  2. Step 2: Convert to fraction form
    36,038.40/54,089.60 = 21,228.80/x
  3. Step 3: Cross multiply
    36,038.40x = 54,089.60 × 21,228.80
  4. Step 4: Simplify right side
    36,038.40x = 1,148,257,300.48
  5. Step 5: Solve for x
    x = 1,148,257,300.48/36,038.40
  6. Step 6: Final answer
    x = 31,862.05

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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.