Home / 15,535.36-23,272.32-12,420.48

Finding the Fourth Proportional to 15,535.36, 23,272.32 and 12,420.48

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Solution

The fourth proportional to 15,535.36, 23,272.32 and 12,420.48 is: 18,606.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,535.36 : 23,272.32 = 12,420.48 : x
  2. Step 2: Convert to fraction form
    15,535.36/23,272.32 = 12,420.48/x
  3. Step 3: Cross multiply
    15,535.36x = 23,272.32 × 12,420.48
  4. Step 4: Simplify right side
    15,535.36x = 289,053,385.11
  5. Step 5: Solve for x
    x = 289,053,385.11/15,535.36
  6. Step 6: Final answer
    x = 18,606.16

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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.