Home / 37,278.40-55,901.40-12,308.80

Finding the Fourth Proportional to 37,278.40, 55,901.40 and 12,308.80

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Solution

The fourth proportional to 37,278.40, 55,901.40 and 12,308.80 is: 18,457.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,278.40 : 55,901.40 = 12,308.80 : x
  2. Step 2: Convert to fraction form
    37,278.40/55,901.40 = 12,308.80/x
  3. Step 3: Cross multiply
    37,278.40x = 55,901.40 × 12,308.80
  4. Step 4: Simplify right side
    37,278.40x = 688,079,152.32
  5. Step 5: Solve for x
    x = 688,079,152.32/37,278.40
  6. Step 6: Final answer
    x = 18,457.85

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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.