Home / 37,782.64-52,143.47-20,790.28

Finding the Fourth Proportional to 37,782.64, 52,143.47 and 20,790.28

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Solution

The fourth proportional to 37,782.64, 52,143.47 and 20,790.28 is: 28,692.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.64 : 52,143.47 = 20,790.28 : x
  2. Step 2: Convert to fraction form
    37,782.64/52,143.47 = 20,790.28/x
  3. Step 3: Cross multiply
    37,782.64x = 52,143.47 × 20,790.28
  4. Step 4: Simplify right side
    37,782.64x = 1,084,077,341.47
  5. Step 5: Solve for x
    x = 1,084,077,341.47/37,782.64
  6. Step 6: Final answer
    x = 28,692.47

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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.