Home / 28,987.36-40,001.86-16,241.08

Finding the Fourth Proportional to 28,987.36, 40,001.86 and 16,241.08

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Solution

The fourth proportional to 28,987.36, 40,001.86 and 16,241.08 is: 22,412.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.36 : 40,001.86 = 16,241.08 : x
  2. Step 2: Convert to fraction form
    28,987.36/40,001.86 = 16,241.08/x
  3. Step 3: Cross multiply
    28,987.36x = 40,001.86 × 16,241.08
  4. Step 4: Simplify right side
    28,987.36x = 649,673,312.35
  5. Step 5: Solve for x
    x = 649,673,312.35/28,987.36
  6. Step 6: Final answer
    x = 22,412.29

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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.