Home / 20,555.07-28,362.98-12,053.99

Finding the Fourth Proportional to 20,555.07, 28,362.98 and 12,053.99

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Solution

The fourth proportional to 20,555.07, 28,362.98 and 12,053.99 is: 16,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.07 : 28,362.98 = 12,053.99 : x
  2. Step 2: Convert to fraction form
    20,555.07/28,362.98 = 12,053.99/x
  3. Step 3: Cross multiply
    20,555.07x = 28,362.98 × 12,053.99
  4. Step 4: Simplify right side
    20,555.07x = 341,886,875.21
  5. Step 5: Solve for x
    x = 341,886,875.21/20,555.07
  6. Step 6: Final answer
    x = 16,632.73

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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.