Home / 31,534.07-43,515.29-17,385.80

Finding the Fourth Proportional to 31,534.07, 43,515.29 and 17,385.80

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Solution

The fourth proportional to 31,534.07, 43,515.29 and 17,385.80 is: 23,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,534.07 : 43,515.29 = 17,385.80 : x
  2. Step 2: Convert to fraction form
    31,534.07/43,515.29 = 17,385.80/x
  3. Step 3: Cross multiply
    31,534.07x = 43,515.29 × 17,385.80
  4. Step 4: Simplify right side
    31,534.07x = 756,547,954.77
  5. Step 5: Solve for x
    x = 756,547,954.77/31,534.07
  6. Step 6: Final answer
    x = 23,991.45

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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.