Home / 42,205.20-63,307.80-11,040.45

Finding the Fourth Proportional to 42,205.20, 63,307.80 and 11,040.45

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Solution

The fourth proportional to 42,205.20, 63,307.80 and 11,040.45 is: 16,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,205.20 : 63,307.80 = 11,040.45 : x
  2. Step 2: Convert to fraction form
    42,205.20/63,307.80 = 11,040.45/x
  3. Step 3: Cross multiply
    42,205.20x = 63,307.80 × 11,040.45
  4. Step 4: Simplify right side
    42,205.20x = 698,946,600.51
  5. Step 5: Solve for x
    x = 698,946,600.51/42,205.20
  6. Step 6: Final answer
    x = 16,560.68

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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.