Home / 31,355.14-43,271.14-17,208.76

Finding the Fourth Proportional to 31,355.14, 43,271.14 and 17,208.76

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Solution

The fourth proportional to 31,355.14, 43,271.14 and 17,208.76 is: 23,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,355.14 : 43,271.14 = 17,208.76 : x
  2. Step 2: Convert to fraction form
    31,355.14/43,271.14 = 17,208.76/x
  3. Step 3: Cross multiply
    31,355.14x = 43,271.14 × 17,208.76
  4. Step 4: Simplify right side
    31,355.14x = 744,642,663.19
  5. Step 5: Solve for x
    x = 744,642,663.19/31,355.14
  6. Step 6: Final answer
    x = 23,748.66

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Half scale
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Double scale
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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.