Home / 16,890.98-23,316.13-15,119.52

Finding the Fourth Proportional to 16,890.98, 23,316.13 and 15,119.52

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Solution

The fourth proportional to 16,890.98, 23,316.13 and 15,119.52 is: 20,870.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.98 : 23,316.13 = 15,119.52 : x
  2. Step 2: Convert to fraction form
    16,890.98/23,316.13 = 15,119.52/x
  3. Step 3: Cross multiply
    16,890.98x = 23,316.13 × 15,119.52
  4. Step 4: Simplify right side
    16,890.98x = 352,528,693.86
  5. Step 5: Solve for x
    x = 352,528,693.86/16,890.98
  6. Step 6: Final answer
    x = 20,870.83

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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.