Home / 38,880.90-58,330.60-12,585.64

Finding the Fourth Proportional to 38,880.90, 58,330.60 and 12,585.64

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Solution

The fourth proportional to 38,880.90, 58,330.60 and 12,585.64 is: 18,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,880.90 : 58,330.60 = 12,585.64 : x
  2. Step 2: Convert to fraction form
    38,880.90/58,330.60 = 12,585.64/x
  3. Step 3: Cross multiply
    38,880.90x = 58,330.60 × 12,585.64
  4. Step 4: Simplify right side
    38,880.90x = 734,127,932.58
  5. Step 5: Solve for x
    x = 734,127,932.58/38,880.90
  6. Step 6: Final answer
    x = 18,881.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.