Home / 42,465.36-63,701.04-12,885.60

Finding the Fourth Proportional to 42,465.36, 63,701.04 and 12,885.60

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Solution

The fourth proportional to 42,465.36, 63,701.04 and 12,885.60 is: 19,329.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,465.36 : 63,701.04 = 12,885.60 : x
  2. Step 2: Convert to fraction form
    42,465.36/63,701.04 = 12,885.60/x
  3. Step 3: Cross multiply
    42,465.36x = 63,701.04 × 12,885.60
  4. Step 4: Simplify right side
    42,465.36x = 820,826,121.02
  5. Step 5: Solve for x
    x = 820,826,121.02/42,465.36
  6. Step 6: Final answer
    x = 19,329.31

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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.