Home / 38,970.15-58,446.78-12,318.27

Finding the Fourth Proportional to 38,970.15, 58,446.78 and 12,318.27

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Solution

The fourth proportional to 38,970.15, 58,446.78 and 12,318.27 is: 18,474.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,970.15 : 58,446.78 = 12,318.27 : x
  2. Step 2: Convert to fraction form
    38,970.15/58,446.78 = 12,318.27/x
  3. Step 3: Cross multiply
    38,970.15x = 58,446.78 × 12,318.27
  4. Step 4: Simplify right side
    38,970.15x = 719,963,216.67
  5. Step 5: Solve for x
    x = 719,963,216.67/38,970.15
  6. Step 6: Final answer
    x = 18,474.74

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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.