Home / 38,210.88-57,315.36-13,268.80

Finding the Fourth Proportional to 38,210.88, 57,315.36 and 13,268.80

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Solution

The fourth proportional to 38,210.88, 57,315.36 and 13,268.80 is: 19,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,210.88 : 57,315.36 = 13,268.80 : x
  2. Step 2: Convert to fraction form
    38,210.88/57,315.36 = 13,268.80/x
  3. Step 3: Cross multiply
    38,210.88x = 57,315.36 × 13,268.80
  4. Step 4: Simplify right side
    38,210.88x = 760,506,048.77
  5. Step 5: Solve for x
    x = 760,506,048.77/38,210.88
  6. Step 6: Final answer
    x = 19,902.87

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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.