Home / 28,132.15-42,203.10-11,501.23

Finding the Fourth Proportional to 28,132.15, 42,203.10 and 11,501.23

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Solution

The fourth proportional to 28,132.15, 42,203.10 and 11,501.23 is: 17,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,132.15 : 42,203.10 = 11,501.23 : x
  2. Step 2: Convert to fraction form
    28,132.15/42,203.10 = 11,501.23/x
  3. Step 3: Cross multiply
    28,132.15x = 42,203.10 × 11,501.23
  4. Step 4: Simplify right side
    28,132.15x = 485,387,559.81
  5. Step 5: Solve for x
    x = 485,387,559.81/28,132.15
  6. Step 6: Final answer
    x = 17,253.84

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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.