Home / 58,378.35-87,578.48-18,930.34

Finding the Fourth Proportional to 58,378.35, 87,578.48 and 18,930.34

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Solution

The fourth proportional to 58,378.35, 87,578.48 and 18,930.34 is: 28,399.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,378.35 : 87,578.48 = 18,930.34 : x
  2. Step 2: Convert to fraction form
    58,378.35/87,578.48 = 18,930.34/x
  3. Step 3: Cross multiply
    58,378.35x = 87,578.48 × 18,930.34
  4. Step 4: Simplify right side
    58,378.35x = 1,657,890,403.08
  5. Step 5: Solve for x
    x = 1,657,890,403.08/58,378.35
  6. Step 6: Final answer
    x = 28,399.06

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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.