Home / 22,946.19-31,676.87-15,389.76

Finding the Fourth Proportional to 22,946.19, 31,676.87 and 15,389.76

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Solution

The fourth proportional to 22,946.19, 31,676.87 and 15,389.76 is: 21,245.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,946.19 : 31,676.87 = 15,389.76 : x
  2. Step 2: Convert to fraction form
    22,946.19/31,676.87 = 15,389.76/x
  3. Step 3: Cross multiply
    22,946.19x = 31,676.87 × 15,389.76
  4. Step 4: Simplify right side
    22,946.19x = 487,499,349.90
  5. Step 5: Solve for x
    x = 487,499,349.90/22,946.19
  6. Step 6: Final answer
    x = 21,245.33

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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.