Home / 28,316.76-39,079.16-16,986.74

Finding the Fourth Proportional to 28,316.76, 39,079.16 and 16,986.74

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Solution

The fourth proportional to 28,316.76, 39,079.16 and 16,986.74 is: 23,442.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.76 : 39,079.16 = 16,986.74 : x
  2. Step 2: Convert to fraction form
    28,316.76/39,079.16 = 16,986.74/x
  3. Step 3: Cross multiply
    28,316.76x = 39,079.16 × 16,986.74
  4. Step 4: Simplify right side
    28,316.76x = 663,827,250.01
  5. Step 5: Solve for x
    x = 663,827,250.01/28,316.76
  6. Step 6: Final answer
    x = 23,442.91

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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.