Home / 40,157.40-55,421.10-22,258.20

Finding the Fourth Proportional to 40,157.40, 55,421.10 and 22,258.20

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Solution

The fourth proportional to 40,157.40, 55,421.10 and 22,258.20 is: 30,718.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,157.40 : 55,421.10 = 22,258.20 : x
  2. Step 2: Convert to fraction form
    40,157.40/55,421.10 = 22,258.20/x
  3. Step 3: Cross multiply
    40,157.40x = 55,421.10 × 22,258.20
  4. Step 4: Simplify right side
    40,157.40x = 1,233,573,928.02
  5. Step 5: Solve for x
    x = 1,233,573,928.02/40,157.40
  6. Step 6: Final answer
    x = 30,718.47

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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.