Home / 30,258.28-45,373.65-12,718.54

Finding the Fourth Proportional to 30,258.28, 45,373.65 and 12,718.54

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Solution

The fourth proportional to 30,258.28, 45,373.65 and 12,718.54 is: 19,072.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.28 : 45,373.65 = 12,718.54 : x
  2. Step 2: Convert to fraction form
    30,258.28/45,373.65 = 12,718.54/x
  3. Step 3: Cross multiply
    30,258.28x = 45,373.65 × 12,718.54
  4. Step 4: Simplify right side
    30,258.28x = 577,086,582.47
  5. Step 5: Solve for x
    x = 577,086,582.47/30,258.28
  6. Step 6: Final answer
    x = 19,072.02

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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.