Home / 37,557.76-51,828.24-20,790.40

Finding the Fourth Proportional to 37,557.76, 51,828.24 and 20,790.40

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Solution

The fourth proportional to 37,557.76, 51,828.24 and 20,790.40 is: 28,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,557.76 : 51,828.24 = 20,790.40 : x
  2. Step 2: Convert to fraction form
    37,557.76/51,828.24 = 20,790.40/x
  3. Step 3: Cross multiply
    37,557.76x = 51,828.24 × 20,790.40
  4. Step 4: Simplify right side
    37,557.76x = 1,077,529,840.90
  5. Step 5: Solve for x
    x = 1,077,529,840.90/37,557.76
  6. Step 6: Final answer
    x = 28,689.94

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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.