Home / 20,395.02-28,148.40-12,011.52

Finding the Fourth Proportional to 20,395.02, 28,148.40 and 12,011.52

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Solution

The fourth proportional to 20,395.02, 28,148.40 and 12,011.52 is: 16,577.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,395.02 : 28,148.40 = 12,011.52 : x
  2. Step 2: Convert to fraction form
    20,395.02/28,148.40 = 12,011.52/x
  3. Step 3: Cross multiply
    20,395.02x = 28,148.40 × 12,011.52
  4. Step 4: Simplify right side
    20,395.02x = 338,105,069.57
  5. Step 5: Solve for x
    x = 338,105,069.57/20,395.02
  6. Step 6: Final answer
    x = 16,577.82

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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.