Home / 21,403.43-29,543.50-14,698.45

Finding the Fourth Proportional to 21,403.43, 29,543.50 and 14,698.45

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Solution

The fourth proportional to 21,403.43, 29,543.50 and 14,698.45 is: 20,288.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,403.43 : 29,543.50 = 14,698.45 : x
  2. Step 2: Convert to fraction form
    21,403.43/29,543.50 = 14,698.45/x
  3. Step 3: Cross multiply
    21,403.43x = 29,543.50 × 14,698.45
  4. Step 4: Simplify right side
    21,403.43x = 434,243,657.58
  5. Step 5: Solve for x
    x = 434,243,657.58/21,403.43
  6. Step 6: Final answer
    x = 20,288.51

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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.