Home / 30,731.16-42,409.08-17,302.62

Finding the Fourth Proportional to 30,731.16, 42,409.08 and 17,302.62

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Solution

The fourth proportional to 30,731.16, 42,409.08 and 17,302.62 is: 23,877.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,731.16 : 42,409.08 = 17,302.62 : x
  2. Step 2: Convert to fraction form
    30,731.16/42,409.08 = 17,302.62/x
  3. Step 3: Cross multiply
    30,731.16x = 42,409.08 × 17,302.62
  4. Step 4: Simplify right side
    30,731.16x = 733,788,195.79
  5. Step 5: Solve for x
    x = 733,788,195.79/30,731.16
  6. Step 6: Final answer
    x = 23,877.66

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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.