Home / 42,576.48-63,865.76-12,994.24

Finding the Fourth Proportional to 42,576.48, 63,865.76 and 12,994.24

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Solution

The fourth proportional to 42,576.48, 63,865.76 and 12,994.24 is: 19,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,576.48 : 63,865.76 = 12,994.24 : x
  2. Step 2: Convert to fraction form
    42,576.48/63,865.76 = 12,994.24/x
  3. Step 3: Cross multiply
    42,576.48x = 63,865.76 × 12,994.24
  4. Step 4: Simplify right side
    42,576.48x = 829,887,013.22
  5. Step 5: Solve for x
    x = 829,887,013.22/42,576.48
  6. Step 6: Final answer
    x = 19,491.68

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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.