Home / 20,529.02-28,328.36-12,030.02

Finding the Fourth Proportional to 20,529.02, 28,328.36 and 12,030.02

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Solution

The fourth proportional to 20,529.02, 28,328.36 and 12,030.02 is: 16,600.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.02 : 28,328.36 = 12,030.02 : x
  2. Step 2: Convert to fraction form
    20,529.02/28,328.36 = 12,030.02/x
  3. Step 3: Cross multiply
    20,529.02x = 28,328.36 × 12,030.02
  4. Step 4: Simplify right side
    20,529.02x = 340,790,535.58
  5. Step 5: Solve for x
    x = 340,790,535.58/20,529.02
  6. Step 6: Final answer
    x = 16,600.43

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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.