Home / 31,903.76-44,036.87-18,478.31

Finding the Fourth Proportional to 31,903.76, 44,036.87 and 18,478.31

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Solution

The fourth proportional to 31,903.76, 44,036.87 and 18,478.31 is: 25,505.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,903.76 : 44,036.87 = 18,478.31 : x
  2. Step 2: Convert to fraction form
    31,903.76/44,036.87 = 18,478.31/x
  3. Step 3: Cross multiply
    31,903.76x = 44,036.87 × 18,478.31
  4. Step 4: Simplify right side
    31,903.76x = 813,726,622.71
  5. Step 5: Solve for x
    x = 813,726,622.71/31,903.76
  6. Step 6: Final answer
    x = 25,505.67

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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.