Home / 30,443.66-42,038.97-19,132.76

Finding the Fourth Proportional to 30,443.66, 42,038.97 and 19,132.76

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Solution

The fourth proportional to 30,443.66, 42,038.97 and 19,132.76 is: 26,420.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,443.66 : 42,038.97 = 19,132.76 : x
  2. Step 2: Convert to fraction form
    30,443.66/42,038.97 = 19,132.76/x
  3. Step 3: Cross multiply
    30,443.66x = 42,038.97 × 19,132.76
  4. Step 4: Simplify right side
    30,443.66x = 804,321,523.66
  5. Step 5: Solve for x
    x = 804,321,523.66/30,443.66
  6. Step 6: Final answer
    x = 26,420.00

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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.