Home / 33,130.71-45,715.23-18,980.82

Finding the Fourth Proportional to 33,130.71, 45,715.23 and 18,980.82

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Solution

The fourth proportional to 33,130.71, 45,715.23 and 18,980.82 is: 26,190.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,130.71 : 45,715.23 = 18,980.82 : x
  2. Step 2: Convert to fraction form
    33,130.71/45,715.23 = 18,980.82/x
  3. Step 3: Cross multiply
    33,130.71x = 45,715.23 × 18,980.82
  4. Step 4: Simplify right side
    33,130.71x = 867,712,551.89
  5. Step 5: Solve for x
    x = 867,712,551.89/33,130.71
  6. Step 6: Final answer
    x = 26,190.58

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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.