Home / 48,990.12-73,483.56-21,288.12

Finding the Fourth Proportional to 48,990.12, 73,483.56 and 21,288.12

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Solution

The fourth proportional to 48,990.12, 73,483.56 and 21,288.12 is: 31,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.12 : 73,483.56 = 21,288.12 : x
  2. Step 2: Convert to fraction form
    48,990.12/73,483.56 = 21,288.12/x
  3. Step 3: Cross multiply
    48,990.12x = 73,483.56 × 21,288.12
  4. Step 4: Simplify right side
    48,990.12x = 1,564,326,843.31
  5. Step 5: Solve for x
    x = 1,564,326,843.31/48,990.12
  6. Step 6: Final answer
    x = 31,931.48

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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.