Home / 32,856.30-45,345.26-20,118.06

Finding the Fourth Proportional to 32,856.30, 45,345.26 and 20,118.06

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Solution

The fourth proportional to 32,856.30, 45,345.26 and 20,118.06 is: 27,765.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,856.30 : 45,345.26 = 20,118.06 : x
  2. Step 2: Convert to fraction form
    32,856.30/45,345.26 = 20,118.06/x
  3. Step 3: Cross multiply
    32,856.30x = 45,345.26 × 20,118.06
  4. Step 4: Simplify right side
    32,856.30x = 912,258,661.40
  5. Step 5: Solve for x
    x = 912,258,661.40/32,856.30
  6. Step 6: Final answer
    x = 27,765.11

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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.