Home / 38,973.80-53,783.82-21,068.81

Finding the Fourth Proportional to 38,973.80, 53,783.82 and 21,068.81

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Solution

The fourth proportional to 38,973.80, 53,783.82 and 21,068.81 is: 29,074.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973.80 : 53,783.82 = 21,068.81 : x
  2. Step 2: Convert to fraction form
    38,973.80/53,783.82 = 21,068.81/x
  3. Step 3: Cross multiply
    38,973.80x = 53,783.82 × 21,068.81
  4. Step 4: Simplify right side
    38,973.80x = 1,133,160,815.74
  5. Step 5: Solve for x
    x = 1,133,160,815.74/38,973.80
  6. Step 6: Final answer
    x = 29,074.94

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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.