Home / 31,810.77-43,895.50-18,386.29

Finding the Fourth Proportional to 31,810.77, 43,895.50 and 18,386.29

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Solution

The fourth proportional to 31,810.77, 43,895.50 and 18,386.29 is: 25,371.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,810.77 : 43,895.50 = 18,386.29 : x
  2. Step 2: Convert to fraction form
    31,810.77/43,895.50 = 18,386.29/x
  3. Step 3: Cross multiply
    31,810.77x = 43,895.50 × 18,386.29
  4. Step 4: Simplify right side
    31,810.77x = 807,075,392.70
  5. Step 5: Solve for x
    x = 807,075,392.70/31,810.77
  6. Step 6: Final answer
    x = 25,371.14

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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.