Home / 30,381.66-45,573.87-9,320.16

Finding the Fourth Proportional to 30,381.66, 45,573.87 and 9,320.16

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Solution

The fourth proportional to 30,381.66, 45,573.87 and 9,320.16 is: 13,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,381.66 : 45,573.87 = 9,320.16 : x
  2. Step 2: Convert to fraction form
    30,381.66/45,573.87 = 9,320.16/x
  3. Step 3: Cross multiply
    30,381.66x = 45,573.87 × 9,320.16
  4. Step 4: Simplify right side
    30,381.66x = 424,755,760.22
  5. Step 5: Solve for x
    x = 424,755,760.22/30,381.66
  6. Step 6: Final answer
    x = 13,980.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.