Home / 31,526.92-43,502.34-18,776.20

Finding the Fourth Proportional to 31,526.92, 43,502.34 and 18,776.20

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Solution

The fourth proportional to 31,526.92, 43,502.34 and 18,776.20 is: 25,908.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.92 : 43,502.34 = 18,776.20 : x
  2. Step 2: Convert to fraction form
    31,526.92/43,502.34 = 18,776.20/x
  3. Step 3: Cross multiply
    31,526.92x = 43,502.34 × 18,776.20
  4. Step 4: Simplify right side
    31,526.92x = 816,808,636.31
  5. Step 5: Solve for x
    x = 816,808,636.31/31,526.92
  6. Step 6: Final answer
    x = 25,908.29

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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.