Home / 30,457.09-45,654.51-17,281.63

Finding the Fourth Proportional to 30,457.09, 45,654.51 and 17,281.63

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Solution

The fourth proportional to 30,457.09, 45,654.51 and 17,281.63 is: 25,904.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,457.09 : 45,654.51 = 17,281.63 : x
  2. Step 2: Convert to fraction form
    30,457.09/45,654.51 = 17,281.63/x
  3. Step 3: Cross multiply
    30,457.09x = 45,654.51 × 17,281.63
  4. Step 4: Simplify right side
    30,457.09x = 788,984,349.65
  5. Step 5: Solve for x
    x = 788,984,349.65/30,457.09
  6. Step 6: Final answer
    x = 25,904.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.