Home / 22,719.16-31,378.68-15,152.34

Finding the Fourth Proportional to 22,719.16, 31,378.68 and 15,152.34

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Solution

The fourth proportional to 22,719.16, 31,378.68 and 15,152.34 is: 20,927.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,719.16 : 31,378.68 = 15,152.34 : x
  2. Step 2: Convert to fraction form
    22,719.16/31,378.68 = 15,152.34/x
  3. Step 3: Cross multiply
    22,719.16x = 31,378.68 × 15,152.34
  4. Step 4: Simplify right side
    22,719.16x = 475,460,271.22
  5. Step 5: Solve for x
    x = 475,460,271.22/22,719.16
  6. Step 6: Final answer
    x = 20,927.73

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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.