Home / 30,981.16-42,732.20-19,051.04

Finding the Fourth Proportional to 30,981.16, 42,732.20 and 19,051.04

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Solution

The fourth proportional to 30,981.16, 42,732.20 and 19,051.04 is: 26,277.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.16 : 42,732.20 = 19,051.04 : x
  2. Step 2: Convert to fraction form
    30,981.16/42,732.20 = 19,051.04/x
  3. Step 3: Cross multiply
    30,981.16x = 42,732.20 × 19,051.04
  4. Step 4: Simplify right side
    30,981.16x = 814,092,851.49
  5. Step 5: Solve for x
    x = 814,092,851.49/30,981.16
  6. Step 6: Final answer
    x = 26,277.03

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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.