Home / 42,485.48-63,724.09-12,903.58

Finding the Fourth Proportional to 42,485.48, 63,724.09 and 12,903.58

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Solution

The fourth proportional to 42,485.48, 63,724.09 and 12,903.58 is: 19,354.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,485.48 : 63,724.09 = 12,903.58 : x
  2. Step 2: Convert to fraction form
    42,485.48/63,724.09 = 12,903.58/x
  3. Step 3: Cross multiply
    42,485.48x = 63,724.09 × 12,903.58
  4. Step 4: Simplify right side
    42,485.48x = 822,268,510.10
  5. Step 5: Solve for x
    x = 822,268,510.10/42,485.48
  6. Step 6: Final answer
    x = 19,354.11

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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.