Home / 28,233.96-38,873.70-21,498

Finding the Fourth Proportional to 28,233.96, 38,873.70 and 21,498

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Solution

The fourth proportional to 28,233.96, 38,873.70 and 21,498 is: 29,599.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,233.96 : 38,873.70 = 21,498 : x
  2. Step 2: Convert to fraction form
    28,233.96/38,873.70 = 21,498/x
  3. Step 3: Cross multiply
    28,233.96x = 38,873.70 × 21,498
  4. Step 4: Simplify right side
    28,233.96x = 835,706,802.60
  5. Step 5: Solve for x
    x = 835,706,802.60/28,233.96
  6. Step 6: Final answer
    x = 29,599.35

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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.