Home / 42,550.93-63,835.87-12,971.07

Finding the Fourth Proportional to 42,550.93, 63,835.87 and 12,971.07

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Solution

The fourth proportional to 42,550.93, 63,835.87 and 12,971.07 is: 19,459.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.93 : 63,835.87 = 12,971.07 : x
  2. Step 2: Convert to fraction form
    42,550.93/63,835.87 = 12,971.07/x
  3. Step 3: Cross multiply
    42,550.93x = 63,835.87 × 12,971.07
  4. Step 4: Simplify right side
    42,550.93x = 828,019,538.28
  5. Step 5: Solve for x
    x = 828,019,538.28/42,550.93
  6. Step 6: Final answer
    x = 19,459.49

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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.