Home / 21,623.74-32,220.65-19,265.63

Finding the Fourth Proportional to 21,623.74, 32,220.65 and 19,265.63

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Solution

The fourth proportional to 21,623.74, 32,220.65 and 19,265.63 is: 28,706.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,623.74 : 32,220.65 = 19,265.63 : x
  2. Step 2: Convert to fraction form
    21,623.74/32,220.65 = 19,265.63/x
  3. Step 3: Cross multiply
    21,623.74x = 32,220.65 × 19,265.63
  4. Step 4: Simplify right side
    21,623.74x = 620,751,008.32
  5. Step 5: Solve for x
    x = 620,751,008.32/21,623.74
  6. Step 6: Final answer
    x = 28,706.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.