Home / 31,920.16-44,053.68-18,313.18

Finding the Fourth Proportional to 31,920.16, 44,053.68 and 18,313.18

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Solution

The fourth proportional to 31,920.16, 44,053.68 and 18,313.18 is: 25,274.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,920.16 : 44,053.68 = 18,313.18 : x
  2. Step 2: Convert to fraction form
    31,920.16/44,053.68 = 18,313.18/x
  3. Step 3: Cross multiply
    31,920.16x = 44,053.68 × 18,313.18
  4. Step 4: Simplify right side
    31,920.16x = 806,762,971.50
  5. Step 5: Solve for x
    x = 806,762,971.50/31,920.16
  6. Step 6: Final answer
    x = 25,274.40

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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.