Home / 28,271.93-42,343.30-13,491.23

Finding the Fourth Proportional to 28,271.93, 42,343.30 and 13,491.23

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Solution

The fourth proportional to 28,271.93, 42,343.30 and 13,491.23 is: 20,206.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,271.93 : 42,343.30 = 13,491.23 : x
  2. Step 2: Convert to fraction form
    28,271.93/42,343.30 = 13,491.23/x
  3. Step 3: Cross multiply
    28,271.93x = 42,343.30 × 13,491.23
  4. Step 4: Simplify right side
    28,271.93x = 571,262,987.54
  5. Step 5: Solve for x
    x = 571,262,987.54/28,271.93
  6. Step 6: Final answer
    x = 20,206.02

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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.