Home / 28,233.09-42,342.35-13,412.52

Finding the Fourth Proportional to 28,233.09, 42,342.35 and 13,412.52

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Solution

The fourth proportional to 28,233.09, 42,342.35 and 13,412.52 is: 20,115.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.09 : 42,342.35 = 13,412.52 : x
  2. Step 2: Convert to fraction form
    28,233.09/42,342.35 = 13,412.52/x
  3. Step 3: Cross multiply
    28,233.09x = 42,342.35 × 13,412.52
  4. Step 4: Simplify right side
    28,233.09x = 567,917,549.16
  5. Step 5: Solve for x
    x = 567,917,549.16/28,233.09
  6. Step 6: Final answer
    x = 20,115.32

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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.