Home / 30,675.79-42,332.38-17,247.07

Finding the Fourth Proportional to 30,675.79, 42,332.38 and 17,247.07

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Solution

The fourth proportional to 30,675.79, 42,332.38 and 17,247.07 is: 23,800.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,675.79 : 42,332.38 = 17,247.07 : x
  2. Step 2: Convert to fraction form
    30,675.79/42,332.38 = 17,247.07/x
  3. Step 3: Cross multiply
    30,675.79x = 42,332.38 × 17,247.07
  4. Step 4: Simplify right side
    30,675.79x = 730,109,521.13
  5. Step 5: Solve for x
    x = 730,109,521.13/30,675.79
  6. Step 6: Final answer
    x = 23,800.84

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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.