Home / 38,464.60-57,740.10-20,925.40

Finding the Fourth Proportional to 38,464.60, 57,740.10 and 20,925.40

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Solution

The fourth proportional to 38,464.60, 57,740.10 and 20,925.40 is: 31,411.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,464.60 : 57,740.10 = 20,925.40 : x
  2. Step 2: Convert to fraction form
    38,464.60/57,740.10 = 20,925.40/x
  3. Step 3: Cross multiply
    38,464.60x = 57,740.10 × 20,925.40
  4. Step 4: Simplify right side
    38,464.60x = 1,208,234,688.54
  5. Step 5: Solve for x
    x = 1,208,234,688.54/38,464.60
  6. Step 6: Final answer
    x = 31,411.60

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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.