Home / 28,987.86-43,460.49-9,255.03

Finding the Fourth Proportional to 28,987.86, 43,460.49 and 9,255.03

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Solution

The fourth proportional to 28,987.86, 43,460.49 and 9,255.03 is: 13,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.86 : 43,460.49 = 9,255.03 : x
  2. Step 2: Convert to fraction form
    28,987.86/43,460.49 = 9,255.03/x
  3. Step 3: Cross multiply
    28,987.86x = 43,460.49 × 9,255.03
  4. Step 4: Simplify right side
    28,987.86x = 402,228,138.76
  5. Step 5: Solve for x
    x = 402,228,138.76/28,987.86
  6. Step 6: Final answer
    x = 13,875.74

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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.