Home / 42,037.20-63,055.53-12,455.19

Finding the Fourth Proportional to 42,037.20, 63,055.53 and 12,455.19

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Solution

The fourth proportional to 42,037.20, 63,055.53 and 12,455.19 is: 18,682.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,037.20 : 63,055.53 = 12,455.19 : x
  2. Step 2: Convert to fraction form
    42,037.20/63,055.53 = 12,455.19/x
  3. Step 3: Cross multiply
    42,037.20x = 63,055.53 × 12,455.19
  4. Step 4: Simplify right side
    42,037.20x = 785,368,606.70
  5. Step 5: Solve for x
    x = 785,368,606.70/42,037.20
  6. Step 6: Final answer
    x = 18,682.71

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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.