Home / 15,420.69-23,131.71-4,328.10

Finding the Fourth Proportional to 15,420.69, 23,131.71 and 4,328.10

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Solution

The fourth proportional to 15,420.69, 23,131.71 and 4,328.10 is: 6,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,420.69 : 23,131.71 = 4,328.10 : x
  2. Step 2: Convert to fraction form
    15,420.69/23,131.71 = 4,328.10/x
  3. Step 3: Cross multiply
    15,420.69x = 23,131.71 × 4,328.10
  4. Step 4: Simplify right side
    15,420.69x = 100,116,354.05
  5. Step 5: Solve for x
    x = 100,116,354.05/15,420.69
  6. Step 6: Final answer
    x = 6,492.34

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1.5x scale

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.