Home / 28,176.93-42,271.02-10,407.69

Finding the Fourth Proportional to 28,176.93, 42,271.02 and 10,407.69

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Solution

The fourth proportional to 28,176.93, 42,271.02 and 10,407.69 is: 15,613.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,176.93 : 42,271.02 = 10,407.69 : x
  2. Step 2: Convert to fraction form
    28,176.93/42,271.02 = 10,407.69/x
  3. Step 3: Cross multiply
    28,176.93x = 42,271.02 × 10,407.69
  4. Step 4: Simplify right side
    28,176.93x = 439,943,672.14
  5. Step 5: Solve for x
    x = 439,943,672.14/28,176.93
  6. Step 6: Final answer
    x = 15,613.61

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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.