Home / 28,387.41-42,587.37-8,667.51

Finding the Fourth Proportional to 28,387.41, 42,587.37 and 8,667.51

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Solution

The fourth proportional to 28,387.41, 42,587.37 and 8,667.51 is: 13,003.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,387.41 : 42,587.37 = 8,667.51 : x
  2. Step 2: Convert to fraction form
    28,387.41/42,587.37 = 8,667.51/x
  3. Step 3: Cross multiply
    28,387.41x = 42,587.37 × 8,667.51
  4. Step 4: Simplify right side
    28,387.41x = 369,126,455.35
  5. Step 5: Solve for x
    x = 369,126,455.35/28,387.41
  6. Step 6: Final answer
    x = 13,003.17

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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.