Home / 28,101.90-42,153.06-11,457.42

Finding the Fourth Proportional to 28,101.90, 42,153.06 and 11,457.42

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Solution

The fourth proportional to 28,101.90, 42,153.06 and 11,457.42 is: 17,186.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,101.90 : 42,153.06 = 11,457.42 : x
  2. Step 2: Convert to fraction form
    28,101.90/42,153.06 = 11,457.42/x
  3. Step 3: Cross multiply
    28,101.90x = 42,153.06 × 11,457.42
  4. Step 4: Simplify right side
    28,101.90x = 482,965,312.71
  5. Step 5: Solve for x
    x = 482,965,312.71/28,101.90
  6. Step 6: Final answer
    x = 17,186.22

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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.