Home / 38,875.56-53,647.08-21,880.68

Finding the Fourth Proportional to 38,875.56, 53,647.08 and 21,880.68

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Solution

The fourth proportional to 38,875.56, 53,647.08 and 21,880.68 is: 30,194.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,875.56 : 53,647.08 = 21,880.68 : x
  2. Step 2: Convert to fraction form
    38,875.56/53,647.08 = 21,880.68/x
  3. Step 3: Cross multiply
    38,875.56x = 53,647.08 × 21,880.68
  4. Step 4: Simplify right side
    38,875.56x = 1,173,834,590.41
  5. Step 5: Solve for x
    x = 1,173,834,590.41/38,875.56
  6. Step 6: Final answer
    x = 30,194.67

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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.