Home / 31,159.14-42,993.02-19,824.50

Finding the Fourth Proportional to 31,159.14, 42,993.02 and 19,824.50

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Solution

The fourth proportional to 31,159.14, 42,993.02 and 19,824.50 is: 27,353.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,159.14 : 42,993.02 = 19,824.50 : x
  2. Step 2: Convert to fraction form
    31,159.14/42,993.02 = 19,824.50/x
  3. Step 3: Cross multiply
    31,159.14x = 42,993.02 × 19,824.50
  4. Step 4: Simplify right side
    31,159.14x = 852,315,124.99
  5. Step 5: Solve for x
    x = 852,315,124.99/31,159.14
  6. Step 6: Final answer
    x = 27,353.62

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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.