Home / 31,045.84-42,844.68-18,299.56

Finding the Fourth Proportional to 31,045.84, 42,844.68 and 18,299.56

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Solution

The fourth proportional to 31,045.84, 42,844.68 and 18,299.56 is: 25,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,045.84 : 42,844.68 = 18,299.56 : x
  2. Step 2: Convert to fraction form
    31,045.84/42,844.68 = 18,299.56/x
  3. Step 3: Cross multiply
    31,045.84x = 42,844.68 × 18,299.56
  4. Step 4: Simplify right side
    31,045.84x = 784,038,792.34
  5. Step 5: Solve for x
    x = 784,038,792.34/31,045.84
  6. Step 6: Final answer
    x = 25,254.23

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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.