Home / 35,818.04-53,653.23-20,981.98

Finding the Fourth Proportional to 35,818.04, 53,653.23 and 20,981.98

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Solution

The fourth proportional to 35,818.04, 53,653.23 and 20,981.98 is: 31,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,818.04 : 53,653.23 = 20,981.98 : x
  2. Step 2: Convert to fraction form
    35,818.04/53,653.23 = 20,981.98/x
  3. Step 3: Cross multiply
    35,818.04x = 53,653.23 × 20,981.98
  4. Step 4: Simplify right side
    35,818.04x = 1,125,750,864.66
  5. Step 5: Solve for x
    x = 1,125,750,864.66/35,818.04
  6. Step 6: Final answer
    x = 31,429.71

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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.