Home / 28,985.08-39,999.56-16,412.28

Finding the Fourth Proportional to 28,985.08, 39,999.56 and 16,412.28

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Solution

The fourth proportional to 28,985.08, 39,999.56 and 16,412.28 is: 22,649.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,985.08 : 39,999.56 = 16,412.28 : x
  2. Step 2: Convert to fraction form
    28,985.08/39,999.56 = 16,412.28/x
  3. Step 3: Cross multiply
    28,985.08x = 39,999.56 × 16,412.28
  4. Step 4: Simplify right side
    28,985.08x = 656,483,978.60
  5. Step 5: Solve for x
    x = 656,483,978.60/28,985.08
  6. Step 6: Final answer
    x = 22,649.03

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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.