Home / 31,457.80-43,412.24-18,030.23

Finding the Fourth Proportional to 31,457.80, 43,412.24 and 18,030.23

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Solution

The fourth proportional to 31,457.80, 43,412.24 and 18,030.23 is: 24,881.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.80 : 43,412.24 = 18,030.23 : x
  2. Step 2: Convert to fraction form
    31,457.80/43,412.24 = 18,030.23/x
  3. Step 3: Cross multiply
    31,457.80x = 43,412.24 × 18,030.23
  4. Step 4: Simplify right side
    31,457.80x = 782,732,672.02
  5. Step 5: Solve for x
    x = 782,732,672.02/31,457.80
  6. Step 6: Final answer
    x = 24,881.99

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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.