Home / 31,157.65-42,998.28-17,010.60

Finding the Fourth Proportional to 31,157.65, 42,998.28 and 17,010.60

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Solution

The fourth proportional to 31,157.65, 42,998.28 and 17,010.60 is: 23,475.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,157.65 : 42,998.28 = 17,010.60 : x
  2. Step 2: Convert to fraction form
    31,157.65/42,998.28 = 17,010.60/x
  3. Step 3: Cross multiply
    31,157.65x = 42,998.28 × 17,010.60
  4. Step 4: Simplify right side
    31,157.65x = 731,426,541.77
  5. Step 5: Solve for x
    x = 731,426,541.77/31,157.65
  6. Step 6: Final answer
    x = 23,475.02

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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.