Home / 28,444.77-42,672.15-9,720.36

Finding the Fourth Proportional to 28,444.77, 42,672.15 and 9,720.36

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Solution

The fourth proportional to 28,444.77, 42,672.15 and 9,720.36 is: 14,582.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,444.77 : 42,672.15 = 9,720.36 : x
  2. Step 2: Convert to fraction form
    28,444.77/42,672.15 = 9,720.36/x
  3. Step 3: Cross multiply
    28,444.77x = 42,672.15 × 9,720.36
  4. Step 4: Simplify right side
    28,444.77x = 414,788,659.97
  5. Step 5: Solve for x
    x = 414,788,659.97/28,444.77
  6. Step 6: Final answer
    x = 14,582.25

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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.