Home / 14,695.72-20,319.95-14,458.32

Finding the Fourth Proportional to 14,695.72, 20,319.95 and 14,458.32

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Solution

The fourth proportional to 14,695.72, 20,319.95 and 14,458.32 is: 19,991.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,695.72 : 20,319.95 = 14,458.32 : x
  2. Step 2: Convert to fraction form
    14,695.72/20,319.95 = 14,458.32/x
  3. Step 3: Cross multiply
    14,695.72x = 20,319.95 × 14,458.32
  4. Step 4: Simplify right side
    14,695.72x = 293,792,375.63
  5. Step 5: Solve for x
    x = 293,792,375.63/14,695.72
  6. Step 6: Final answer
    x = 19,991.70

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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.