Home / 32,718.32-45,148.92-20,143.28

Finding the Fourth Proportional to 32,718.32, 45,148.92 and 20,143.28

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Solution

The fourth proportional to 32,718.32, 45,148.92 and 20,143.28 is: 27,796.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,718.32 : 45,148.92 = 20,143.28 : x
  2. Step 2: Convert to fraction form
    32,718.32/45,148.92 = 20,143.28/x
  3. Step 3: Cross multiply
    32,718.32x = 45,148.92 × 20,143.28
  4. Step 4: Simplify right side
    32,718.32x = 909,447,337.26
  5. Step 5: Solve for x
    x = 909,447,337.26/32,718.32
  6. Step 6: Final answer
    x = 27,796.27

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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.