Home / 38,973.79-53,783.50-21,068.64

Finding the Fourth Proportional to 38,973.79, 53,783.50 and 21,068.64

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Solution

The fourth proportional to 38,973.79, 53,783.50 and 21,068.64 is: 29,074.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973.79 : 53,783.50 = 21,068.64 : x
  2. Step 2: Convert to fraction form
    38,973.79/53,783.50 = 21,068.64/x
  3. Step 3: Cross multiply
    38,973.79x = 53,783.50 × 21,068.64
  4. Step 4: Simplify right side
    38,973.79x = 1,133,145,199.44
  5. Step 5: Solve for x
    x = 1,133,145,199.44/38,973.79
  6. Step 6: Final answer
    x = 29,074.54

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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.