Home / 30,417.86-41,974.20-16,988.33

Finding the Fourth Proportional to 30,417.86, 41,974.20 and 16,988.33

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Solution

The fourth proportional to 30,417.86, 41,974.20 and 16,988.33 is: 23,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,417.86 : 41,974.20 = 16,988.33 : x
  2. Step 2: Convert to fraction form
    30,417.86/41,974.20 = 16,988.33/x
  3. Step 3: Cross multiply
    30,417.86x = 41,974.20 × 16,988.33
  4. Step 4: Simplify right side
    30,417.86x = 713,071,666.02
  5. Step 5: Solve for x
    x = 713,071,666.02/30,417.86
  6. Step 6: Final answer
    x = 23,442.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.