Home / 23,890.86-32,955-15,390.18

Finding the Fourth Proportional to 23,890.86, 32,955 and 15,390.18

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Solution

The fourth proportional to 23,890.86, 32,955 and 15,390.18 is: 21,229.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,890.86 : 32,955 = 15,390.18 : x
  2. Step 2: Convert to fraction form
    23,890.86/32,955 = 15,390.18/x
  3. Step 3: Cross multiply
    23,890.86x = 32,955 × 15,390.18
  4. Step 4: Simplify right side
    23,890.86x = 507,183,381.90
  5. Step 5: Solve for x
    x = 507,183,381.90/23,890.86
  6. Step 6: Final answer
    x = 21,229.18

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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.