Home / 38,740.64-53,462.07-21,973.64

Finding the Fourth Proportional to 38,740.64, 53,462.07 and 21,973.64

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Solution

The fourth proportional to 38,740.64, 53,462.07 and 21,973.64 is: 30,323.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,740.64 : 53,462.07 = 21,973.64 : x
  2. Step 2: Convert to fraction form
    38,740.64/53,462.07 = 21,973.64/x
  3. Step 3: Cross multiply
    38,740.64x = 53,462.07 × 21,973.64
  4. Step 4: Simplify right side
    38,740.64x = 1,174,756,279.83
  5. Step 5: Solve for x
    x = 1,174,756,279.83/38,740.64
  6. Step 6: Final answer
    x = 30,323.62

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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.