Home / 30,911.76-42,655.68-17,484.39

Finding the Fourth Proportional to 30,911.76, 42,655.68 and 17,484.39

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Solution

The fourth proportional to 30,911.76, 42,655.68 and 17,484.39 is: 24,127.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.76 : 42,655.68 = 17,484.39 : x
  2. Step 2: Convert to fraction form
    30,911.76/42,655.68 = 17,484.39/x
  3. Step 3: Cross multiply
    30,911.76x = 42,655.68 × 17,484.39
  4. Step 4: Simplify right side
    30,911.76x = 745,808,544.84
  5. Step 5: Solve for x
    x = 745,808,544.84/30,911.76
  6. Step 6: Final answer
    x = 24,127.02

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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.