Home / 31,312.67-43,213.23-17,888.28

Finding the Fourth Proportional to 31,312.67, 43,213.23 and 17,888.28

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Solution

The fourth proportional to 31,312.67, 43,213.23 and 17,888.28 is: 24,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,312.67 : 43,213.23 = 17,888.28 : x
  2. Step 2: Convert to fraction form
    31,312.67/43,213.23 = 17,888.28/x
  3. Step 3: Cross multiply
    31,312.67x = 43,213.23 × 17,888.28
  4. Step 4: Simplify right side
    31,312.67x = 773,010,268.50
  5. Step 5: Solve for x
    x = 773,010,268.50/31,312.67
  6. Step 6: Final answer
    x = 24,686.82

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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.