Home / 39,085-53,981.85-26,487.88

Finding the Fourth Proportional to 39,085, 53,981.85 and 26,487.88

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Solution

The fourth proportional to 39,085, 53,981.85 and 26,487.88 is: 36,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,085 : 53,981.85 = 26,487.88 : x
  2. Step 2: Convert to fraction form
    39,085/53,981.85 = 26,487.88/x
  3. Step 3: Cross multiply
    39,085x = 53,981.85 × 26,487.88
  4. Step 4: Simplify right side
    39,085x = 1,429,864,764.98
  5. Step 5: Solve for x
    x = 1,429,864,764.98/39,085
  6. Step 6: Final answer
    x = 36,583.47

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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.