Home / 42,029.07-63,043.80-12,447.46

Finding the Fourth Proportional to 42,029.07, 63,043.80 and 12,447.46

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Solution

The fourth proportional to 42,029.07, 63,043.80 and 12,447.46 is: 18,671.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,029.07 : 63,043.80 = 12,447.46 : x
  2. Step 2: Convert to fraction form
    42,029.07/63,043.80 = 12,447.46/x
  3. Step 3: Cross multiply
    42,029.07x = 63,043.80 × 12,447.46
  4. Step 4: Simplify right side
    42,029.07x = 784,735,280.89
  5. Step 5: Solve for x
    x = 784,735,280.89/42,029.07
  6. Step 6: Final answer
    x = 18,671.25

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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.