Home / 25,719.04-35,503.76-15,109.36

Finding the Fourth Proportional to 25,719.04, 35,503.76 and 15,109.36

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Solution

The fourth proportional to 25,719.04, 35,503.76 and 15,109.36 is: 20,857.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,719.04 : 35,503.76 = 15,109.36 : x
  2. Step 2: Convert to fraction form
    25,719.04/35,503.76 = 15,109.36/x
  3. Step 3: Cross multiply
    25,719.04x = 35,503.76 × 15,109.36
  4. Step 4: Simplify right side
    25,719.04x = 536,439,091.19
  5. Step 5: Solve for x
    x = 536,439,091.19/25,719.04
  6. Step 6: Final answer
    x = 20,857.66

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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.