Home / 28,110.32-42,165.48-9,642.48

Finding the Fourth Proportional to 28,110.32, 42,165.48 and 9,642.48

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Solution

The fourth proportional to 28,110.32, 42,165.48 and 9,642.48 is: 14,463.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,110.32 : 42,165.48 = 9,642.48 : x
  2. Step 2: Convert to fraction form
    28,110.32/42,165.48 = 9,642.48/x
  3. Step 3: Cross multiply
    28,110.32x = 42,165.48 × 9,642.48
  4. Step 4: Simplify right side
    28,110.32x = 406,579,797.59
  5. Step 5: Solve for x
    x = 406,579,797.59/28,110.32
  6. Step 6: Final answer
    x = 14,463.72

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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.