Home / 30,985.18-42,756.19-17,556.19

Finding the Fourth Proportional to 30,985.18, 42,756.19 and 17,556.19

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Solution

The fourth proportional to 30,985.18, 42,756.19 and 17,556.19 is: 24,225.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,985.18 : 42,756.19 = 17,556.19 : x
  2. Step 2: Convert to fraction form
    30,985.18/42,756.19 = 17,556.19/x
  3. Step 3: Cross multiply
    30,985.18x = 42,756.19 × 17,556.19
  4. Step 4: Simplify right side
    30,985.18x = 750,635,644.54
  5. Step 5: Solve for x
    x = 750,635,644.54/30,985.18
  6. Step 6: Final answer
    x = 24,225.64

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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.