Home / 30,953.16-42,714.27-16,805.70

Finding the Fourth Proportional to 30,953.16, 42,714.27 and 16,805.70

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Solution

The fourth proportional to 30,953.16, 42,714.27 and 16,805.70 is: 23,191.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,953.16 : 42,714.27 = 16,805.70 : x
  2. Step 2: Convert to fraction form
    30,953.16/42,714.27 = 16,805.70/x
  3. Step 3: Cross multiply
    30,953.16x = 42,714.27 × 16,805.70
  4. Step 4: Simplify right side
    30,953.16x = 717,843,207.34
  5. Step 5: Solve for x
    x = 717,843,207.34/30,953.16
  6. Step 6: Final answer
    x = 23,191.27

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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.