Home / 28,081.47-38,752.52-15,334.77

Finding the Fourth Proportional to 28,081.47, 38,752.52 and 15,334.77

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Solution

The fourth proportional to 28,081.47, 38,752.52 and 15,334.77 is: 21,162.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081.47 : 38,752.52 = 15,334.77 : x
  2. Step 2: Convert to fraction form
    28,081.47/38,752.52 = 15,334.77/x
  3. Step 3: Cross multiply
    28,081.47x = 38,752.52 × 15,334.77
  4. Step 4: Simplify right side
    28,081.47x = 594,260,981.12
  5. Step 5: Solve for x
    x = 594,260,981.12/28,081.47
  6. Step 6: Final answer
    x = 21,162.03

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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.