Home / 31,981.32-44,130.56-18,368.61

Finding the Fourth Proportional to 31,981.32, 44,130.56 and 18,368.61

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Solution

The fourth proportional to 31,981.32, 44,130.56 and 18,368.61 is: 25,346.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,981.32 : 44,130.56 = 18,368.61 : x
  2. Step 2: Convert to fraction form
    31,981.32/44,130.56 = 18,368.61/x
  3. Step 3: Cross multiply
    31,981.32x = 44,130.56 × 18,368.61
  4. Step 4: Simplify right side
    31,981.32x = 810,616,953.88
  5. Step 5: Solve for x
    x = 810,616,953.88/31,981.32
  6. Step 6: Final answer
    x = 25,346.58

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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.