Home / 53,985.92-80,980.32-18,927.68

Finding the Fourth Proportional to 53,985.92, 80,980.32 and 18,927.68

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Solution

The fourth proportional to 53,985.92, 80,980.32 and 18,927.68 is: 28,392.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,985.92 : 80,980.32 = 18,927.68 : x
  2. Step 2: Convert to fraction form
    53,985.92/80,980.32 = 18,927.68/x
  3. Step 3: Cross multiply
    53,985.92x = 80,980.32 × 18,927.68
  4. Step 4: Simplify right side
    53,985.92x = 1,532,769,583.26
  5. Step 5: Solve for x
    x = 1,532,769,583.26/53,985.92
  6. Step 6: Final answer
    x = 28,392.02

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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.