Home / 42,008.40-57,971.84-23,145.68

Finding the Fourth Proportional to 42,008.40, 57,971.84 and 23,145.68

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Solution

The fourth proportional to 42,008.40, 57,971.84 and 23,145.68 is: 31,941.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,008.40 : 57,971.84 = 23,145.68 : x
  2. Step 2: Convert to fraction form
    42,008.40/57,971.84 = 23,145.68/x
  3. Step 3: Cross multiply
    42,008.40x = 57,971.84 × 23,145.68
  4. Step 4: Simplify right side
    42,008.40x = 1,341,797,657.65
  5. Step 5: Solve for x
    x = 1,341,797,657.65/42,008.40
  6. Step 6: Final answer
    x = 31,941.18

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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.