Home / 30,913.85-42,663.24-17,485.07

Finding the Fourth Proportional to 30,913.85, 42,663.24 and 17,485.07

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Solution

The fourth proportional to 30,913.85, 42,663.24 and 17,485.07 is: 24,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,913.85 : 42,663.24 = 17,485.07 : x
  2. Step 2: Convert to fraction form
    30,913.85/42,663.24 = 17,485.07/x
  3. Step 3: Cross multiply
    30,913.85x = 42,663.24 × 17,485.07
  4. Step 4: Simplify right side
    30,913.85x = 745,969,524.51
  5. Step 5: Solve for x
    x = 745,969,524.51/30,913.85
  6. Step 6: Final answer
    x = 24,130.59

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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.