Home / 38,956.95-53,760.47-21,051.95

Finding the Fourth Proportional to 38,956.95, 53,760.47 and 21,051.95

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Solution

The fourth proportional to 38,956.95, 53,760.47 and 21,051.95 is: 29,051.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,956.95 : 53,760.47 = 21,051.95 : x
  2. Step 2: Convert to fraction form
    38,956.95/53,760.47 = 21,051.95/x
  3. Step 3: Cross multiply
    38,956.95x = 53,760.47 × 21,051.95
  4. Step 4: Simplify right side
    38,956.95x = 1,131,762,352.35
  5. Step 5: Solve for x
    x = 1,131,762,352.35/38,956.95
  6. Step 6: Final answer
    x = 29,051.62

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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.