Home / 37,340.20-56,009.10-12,381.40

Finding the Fourth Proportional to 37,340.20, 56,009.10 and 12,381.40

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Solution

The fourth proportional to 37,340.20, 56,009.10 and 12,381.40 is: 18,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,340.20 : 56,009.10 = 12,381.40 : x
  2. Step 2: Convert to fraction form
    37,340.20/56,009.10 = 12,381.40/x
  3. Step 3: Cross multiply
    37,340.20x = 56,009.10 × 12,381.40
  4. Step 4: Simplify right side
    37,340.20x = 693,471,070.74
  5. Step 5: Solve for x
    x = 693,471,070.74/37,340.20
  6. Step 6: Final answer
    x = 18,571.70

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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.