Home / 21,547.58-29,738.44-12,117.98

Finding the Fourth Proportional to 21,547.58, 29,738.44 and 12,117.98

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Solution

The fourth proportional to 21,547.58, 29,738.44 and 12,117.98 is: 16,724.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.58 : 29,738.44 = 12,117.98 : x
  2. Step 2: Convert to fraction form
    21,547.58/29,738.44 = 12,117.98/x
  3. Step 3: Cross multiply
    21,547.58x = 29,738.44 × 12,117.98
  4. Step 4: Simplify right side
    21,547.58x = 360,369,821.15
  5. Step 5: Solve for x
    x = 360,369,821.15/21,547.58
  6. Step 6: Final answer
    x = 16,724.38

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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.