Home / 30,953.19-42,712.45-19,014.60

Finding the Fourth Proportional to 30,953.19, 42,712.45 and 19,014.60

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Solution

The fourth proportional to 30,953.19, 42,712.45 and 19,014.60 is: 26,238.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,953.19 : 42,712.45 = 19,014.60 : x
  2. Step 2: Convert to fraction form
    30,953.19/42,712.45 = 19,014.60/x
  3. Step 3: Cross multiply
    30,953.19x = 42,712.45 × 19,014.60
  4. Step 4: Simplify right side
    30,953.19x = 812,160,151.77
  5. Step 5: Solve for x
    x = 812,160,151.77/30,953.19
  6. Step 6: Final answer
    x = 26,238.33

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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.