Home / 18,430.32-25,434-10,047.36

Finding the Fourth Proportional to 18,430.32, 25,434 and 10,047.36

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Solution

The fourth proportional to 18,430.32, 25,434 and 10,047.36 is: 13,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,430.32 : 25,434 = 10,047.36 : x
  2. Step 2: Convert to fraction form
    18,430.32/25,434 = 10,047.36/x
  3. Step 3: Cross multiply
    18,430.32x = 25,434 × 10,047.36
  4. Step 4: Simplify right side
    18,430.32x = 255,544,554.24
  5. Step 5: Solve for x
    x = 255,544,554.24/18,430.32
  6. Step 6: Final answer
    x = 13,865.44

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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.