Home / 32,390.79-48,476.45-19,918.71

Finding the Fourth Proportional to 32,390.79, 48,476.45 and 19,918.71

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Solution

The fourth proportional to 32,390.79, 48,476.45 and 19,918.71 is: 29,810.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,390.79 : 48,476.45 = 19,918.71 : x
  2. Step 2: Convert to fraction form
    32,390.79/48,476.45 = 19,918.71/x
  3. Step 3: Cross multiply
    32,390.79x = 48,476.45 × 19,918.71
  4. Step 4: Simplify right side
    32,390.79x = 965,588,249.79
  5. Step 5: Solve for x
    x = 965,588,249.79/32,390.79
  6. Step 6: Final answer
    x = 29,810.58

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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.