Home / 16,890.48-23,315.44-15,119.02

Finding the Fourth Proportional to 16,890.48, 23,315.44 and 15,119.02

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Solution

The fourth proportional to 16,890.48, 23,315.44 and 15,119.02 is: 20,870.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.48 : 23,315.44 = 15,119.02 : x
  2. Step 2: Convert to fraction form
    16,890.48/23,315.44 = 15,119.02/x
  3. Step 3: Cross multiply
    16,890.48x = 23,315.44 × 15,119.02
  4. Step 4: Simplify right side
    16,890.48x = 352,506,603.67
  5. Step 5: Solve for x
    x = 352,506,603.67/16,890.48
  6. Step 6: Final answer
    x = 20,870.14

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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.