Home / 34,733.12-47,931.64-18,818

Finding the Fourth Proportional to 34,733.12, 47,931.64 and 18,818

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Solution

The fourth proportional to 34,733.12, 47,931.64 and 18,818 is: 25,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,733.12 : 47,931.64 = 18,818 : x
  2. Step 2: Convert to fraction form
    34,733.12/47,931.64 = 18,818/x
  3. Step 3: Cross multiply
    34,733.12x = 47,931.64 × 18,818
  4. Step 4: Simplify right side
    34,733.12x = 901,977,601.52
  5. Step 5: Solve for x
    x = 901,977,601.52/34,733.12
  6. Step 6: Final answer
    x = 25,968.80

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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.