Home / 40,782.64-56,220.47-28,824.88

Finding the Fourth Proportional to 40,782.64, 56,220.47 and 28,824.88

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Solution

The fourth proportional to 40,782.64, 56,220.47 and 28,824.88 is: 39,736.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,782.64 : 56,220.47 = 28,824.88 : x
  2. Step 2: Convert to fraction form
    40,782.64/56,220.47 = 28,824.88/x
  3. Step 3: Cross multiply
    40,782.64x = 56,220.47 × 28,824.88
  4. Step 4: Simplify right side
    40,782.64x = 1,620,548,123.82
  5. Step 5: Solve for x
    x = 1,620,548,123.82/40,782.64
  6. Step 6: Final answer
    x = 39,736.23

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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.