Home / 20,572.52-28,390.02-11,619.58

Finding the Fourth Proportional to 20,572.52, 28,390.02 and 11,619.58

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Solution

The fourth proportional to 20,572.52, 28,390.02 and 11,619.58 is: 16,034.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572.52 : 28,390.02 = 11,619.58 : x
  2. Step 2: Convert to fraction form
    20,572.52/28,390.02 = 11,619.58/x
  3. Step 3: Cross multiply
    20,572.52x = 28,390.02 × 11,619.58
  4. Step 4: Simplify right side
    20,572.52x = 329,880,108.59
  5. Step 5: Solve for x
    x = 329,880,108.59/20,572.52
  6. Step 6: Final answer
    x = 16,034.99

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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.