Home / 28,581.48-39,378.93-18,873.70

Finding the Fourth Proportional to 28,581.48, 39,378.93 and 18,873.70

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Solution

The fourth proportional to 28,581.48, 39,378.93 and 18,873.70 is: 26,003.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,581.48 : 39,378.93 = 18,873.70 : x
  2. Step 2: Convert to fraction form
    28,581.48/39,378.93 = 18,873.70/x
  3. Step 3: Cross multiply
    28,581.48x = 39,378.93 × 18,873.70
  4. Step 4: Simplify right side
    28,581.48x = 743,226,111.14
  5. Step 5: Solve for x
    x = 743,226,111.14/28,581.48
  6. Step 6: Final answer
    x = 26,003.77

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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.