Home / 21,798.58-30,081.06-12,368.92

Finding the Fourth Proportional to 21,798.58, 30,081.06 and 12,368.92

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Solution

The fourth proportional to 21,798.58, 30,081.06 and 12,368.92 is: 17,068.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.58 : 30,081.06 = 12,368.92 : x
  2. Step 2: Convert to fraction form
    21,798.58/30,081.06 = 12,368.92/x
  3. Step 3: Cross multiply
    21,798.58x = 30,081.06 × 12,368.92
  4. Step 4: Simplify right side
    21,798.58x = 372,070,224.66
  5. Step 5: Solve for x
    x = 372,070,224.66/21,798.58
  6. Step 6: Final answer
    x = 17,068.55

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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.