Home / 31,526.57-43,504.54-18,780.68

Finding the Fourth Proportional to 31,526.57, 43,504.54 and 18,780.68

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Solution

The fourth proportional to 31,526.57, 43,504.54 and 18,780.68 is: 25,916.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.57 : 43,504.54 = 18,780.68 : x
  2. Step 2: Convert to fraction form
    31,526.57/43,504.54 = 18,780.68/x
  3. Step 3: Cross multiply
    31,526.57x = 43,504.54 × 18,780.68
  4. Step 4: Simplify right side
    31,526.57x = 817,044,844.29
  5. Step 5: Solve for x
    x = 817,044,844.29/31,526.57
  6. Step 6: Final answer
    x = 25,916.07

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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.