Home / 30,457.89-42,032.84-17,029.71

Finding the Fourth Proportional to 30,457.89, 42,032.84 and 17,029.71

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Solution

The fourth proportional to 30,457.89, 42,032.84 and 17,029.71 is: 23,501.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457.89 : 42,032.84 = 17,029.71 : x
  2. Step 2: Convert to fraction form
    30,457.89/42,032.84 = 17,029.71/x
  3. Step 3: Cross multiply
    30,457.89x = 42,032.84 × 17,029.71
  4. Step 4: Simplify right side
    30,457.89x = 715,806,990.53
  5. Step 5: Solve for x
    x = 715,806,990.53/30,457.89
  6. Step 6: Final answer
    x = 23,501.53

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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.