Home / 42,448.27-63,686.19-20,258.77

Finding the Fourth Proportional to 42,448.27, 63,686.19 and 20,258.77

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Solution

The fourth proportional to 42,448.27, 63,686.19 and 20,258.77 is: 30,394.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,448.27 : 63,686.19 = 20,258.77 : x
  2. Step 2: Convert to fraction form
    42,448.27/63,686.19 = 20,258.77/x
  3. Step 3: Cross multiply
    42,448.27x = 63,686.19 × 20,258.77
  4. Step 4: Simplify right side
    42,448.27x = 1,290,203,875.39
  5. Step 5: Solve for x
    x = 1,290,203,875.39/42,448.27
  6. Step 6: Final answer
    x = 30,394.73

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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.