Home / 20,641.85-28,458.65-14,894.48

Finding the Fourth Proportional to 20,641.85, 28,458.65 and 14,894.48

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Solution

The fourth proportional to 20,641.85, 28,458.65 and 14,894.48 is: 20,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,641.85 : 28,458.65 = 14,894.48 : x
  2. Step 2: Convert to fraction form
    20,641.85/28,458.65 = 14,894.48/x
  3. Step 3: Cross multiply
    20,641.85x = 28,458.65 × 14,894.48
  4. Step 4: Simplify right side
    20,641.85x = 423,876,859.74
  5. Step 5: Solve for x
    x = 423,876,859.74/20,641.85
  6. Step 6: Final answer
    x = 20,534.82

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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.