Home / 38,973.75-53,783.85-21,068.76

Finding the Fourth Proportional to 38,973.75, 53,783.85 and 21,068.76

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Solution

The fourth proportional to 38,973.75, 53,783.85 and 21,068.76 is: 29,074.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,973.75 : 53,783.85 = 21,068.76 : x
  2. Step 2: Convert to fraction form
    38,973.75/53,783.85 = 21,068.76/x
  3. Step 3: Cross multiply
    38,973.75x = 53,783.85 × 21,068.76
  4. Step 4: Simplify right side
    38,973.75x = 1,133,159,027.53
  5. Step 5: Solve for x
    x = 1,133,159,027.53/38,973.75
  6. Step 6: Final answer
    x = 29,074.93

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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.