Home / 31,150.32-42,986.40-17,723.04

Finding the Fourth Proportional to 31,150.32, 42,986.40 and 17,723.04

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Solution

The fourth proportional to 31,150.32, 42,986.40 and 17,723.04 is: 24,457.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,150.32 : 42,986.40 = 17,723.04 : x
  2. Step 2: Convert to fraction form
    31,150.32/42,986.40 = 17,723.04/x
  3. Step 3: Cross multiply
    31,150.32x = 42,986.40 × 17,723.04
  4. Step 4: Simplify right side
    31,150.32x = 761,849,686.66
  5. Step 5: Solve for x
    x = 761,849,686.66/31,150.32
  6. Step 6: Final answer
    x = 24,457.20

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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.