Home / 21,068.98-29,086.86-14,364.45

Finding the Fourth Proportional to 21,068.98, 29,086.86 and 14,364.45

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Solution

The fourth proportional to 21,068.98, 29,086.86 and 14,364.45 is: 19,830.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.98 : 29,086.86 = 14,364.45 : x
  2. Step 2: Convert to fraction form
    21,068.98/29,086.86 = 14,364.45/x
  3. Step 3: Cross multiply
    21,068.98x = 29,086.86 × 14,364.45
  4. Step 4: Simplify right side
    21,068.98x = 417,816,746.13
  5. Step 5: Solve for x
    x = 417,816,746.13/21,068.98
  6. Step 6: Final answer
    x = 19,830.90

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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.