Home / 28,109.04-38,792.76-15,534

Finding the Fourth Proportional to 28,109.04, 38,792.76 and 15,534

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Solution

The fourth proportional to 28,109.04, 38,792.76 and 15,534 is: 21,438.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109.04 : 38,792.76 = 15,534 : x
  2. Step 2: Convert to fraction form
    28,109.04/38,792.76 = 15,534/x
  3. Step 3: Cross multiply
    28,109.04x = 38,792.76 × 15,534
  4. Step 4: Simplify right side
    28,109.04x = 602,606,733.84
  5. Step 5: Solve for x
    x = 602,606,733.84/28,109.04
  6. Step 6: Final answer
    x = 21,438.18

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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.