Home / 42,289.12-58,298.70-30,348.64

Finding the Fourth Proportional to 42,289.12, 58,298.70 and 30,348.64

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Solution

The fourth proportional to 42,289.12, 58,298.70 and 30,348.64 is: 41,837.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,289.12 : 58,298.70 = 30,348.64 : x
  2. Step 2: Convert to fraction form
    42,289.12/58,298.70 = 30,348.64/x
  3. Step 3: Cross multiply
    42,289.12x = 58,298.70 × 30,348.64
  4. Step 4: Simplify right side
    42,289.12x = 1,769,286,258.77
  5. Step 5: Solve for x
    x = 1,769,286,258.77/42,289.12
  6. Step 6: Final answer
    x = 41,837.86

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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.