Home / 31,022.13-42,810.74-16,875.07

Finding the Fourth Proportional to 31,022.13, 42,810.74 and 16,875.07

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Solution

The fourth proportional to 31,022.13, 42,810.74 and 16,875.07 is: 23,287.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,022.13 : 42,810.74 = 16,875.07 : x
  2. Step 2: Convert to fraction form
    31,022.13/42,810.74 = 16,875.07/x
  3. Step 3: Cross multiply
    31,022.13x = 42,810.74 × 16,875.07
  4. Step 4: Simplify right side
    31,022.13x = 722,434,234.25
  5. Step 5: Solve for x
    x = 722,434,234.25/31,022.13
  6. Step 6: Final answer
    x = 23,287.71

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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.