Home / 42,537.15-63,816.05-12,955.55

Finding the Fourth Proportional to 42,537.15, 63,816.05 and 12,955.55

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Solution

The fourth proportional to 42,537.15, 63,816.05 and 12,955.55 is: 19,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,537.15 : 63,816.05 = 12,955.55 : x
  2. Step 2: Convert to fraction form
    42,537.15/63,816.05 = 12,955.55/x
  3. Step 3: Cross multiply
    42,537.15x = 63,816.05 × 12,955.55
  4. Step 4: Simplify right side
    42,537.15x = 826,771,739.89
  5. Step 5: Solve for x
    x = 826,771,739.89/42,537.15
  6. Step 6: Final answer
    x = 19,436.46

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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.