Home / 53,215.10-79,830.86-18,146.56

Finding the Fourth Proportional to 53,215.10, 79,830.86 and 18,146.56

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Solution

The fourth proportional to 53,215.10, 79,830.86 and 18,146.56 is: 27,222.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,215.10 : 79,830.86 = 18,146.56 : x
  2. Step 2: Convert to fraction form
    53,215.10/79,830.86 = 18,146.56/x
  3. Step 3: Cross multiply
    53,215.10x = 79,830.86 × 18,146.56
  4. Step 4: Simplify right side
    53,215.10x = 1,448,655,490.84
  5. Step 5: Solve for x
    x = 1,448,655,490.84/53,215.10
  6. Step 6: Final answer
    x = 27,222.64

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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.