Home / 38,719.98-53,465.09-31,550.98

Finding the Fourth Proportional to 38,719.98, 53,465.09 and 31,550.98

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Solution

The fourth proportional to 38,719.98, 53,465.09 and 31,550.98 is: 43,566.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,719.98 : 53,465.09 = 31,550.98 : x
  2. Step 2: Convert to fraction form
    38,719.98/53,465.09 = 31,550.98/x
  3. Step 3: Cross multiply
    38,719.98x = 53,465.09 × 31,550.98
  4. Step 4: Simplify right side
    38,719.98x = 1,686,875,772.75
  5. Step 5: Solve for x
    x = 1,686,875,772.75/38,719.98
  6. Step 6: Final answer
    x = 43,566.03

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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.