Home / 38,856.81-58,159.89-20,111.06

Finding the Fourth Proportional to 38,856.81, 58,159.89 and 20,111.06

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Solution

The fourth proportional to 38,856.81, 58,159.89 and 20,111.06 is: 30,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,856.81 : 58,159.89 = 20,111.06 : x
  2. Step 2: Convert to fraction form
    38,856.81/58,159.89 = 20,111.06/x
  3. Step 3: Cross multiply
    38,856.81x = 58,159.89 × 20,111.06
  4. Step 4: Simplify right side
    38,856.81x = 1,169,657,037.38
  5. Step 5: Solve for x
    x = 1,169,657,037.38/38,856.81
  6. Step 6: Final answer
    x = 30,101.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.