Home / 30,939.06-42,695.85-17,510.07

Finding the Fourth Proportional to 30,939.06, 42,695.85 and 17,510.07

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Solution

The fourth proportional to 30,939.06, 42,695.85 and 17,510.07 is: 24,163.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,939.06 : 42,695.85 = 17,510.07 : x
  2. Step 2: Convert to fraction form
    30,939.06/42,695.85 = 17,510.07/x
  3. Step 3: Cross multiply
    30,939.06x = 42,695.85 × 17,510.07
  4. Step 4: Simplify right side
    30,939.06x = 747,607,322.21
  5. Step 5: Solve for x
    x = 747,607,322.21/30,939.06
  6. Step 6: Final answer
    x = 24,163.87

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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.