Home / 35,501.28-53,236.80-12,130.08

Finding the Fourth Proportional to 35,501.28, 53,236.80 and 12,130.08

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Solution

The fourth proportional to 35,501.28, 53,236.80 and 12,130.08 is: 18,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,501.28 : 53,236.80 = 12,130.08 : x
  2. Step 2: Convert to fraction form
    35,501.28/53,236.80 = 12,130.08/x
  3. Step 3: Cross multiply
    35,501.28x = 53,236.80 × 12,130.08
  4. Step 4: Simplify right side
    35,501.28x = 645,766,642.94
  5. Step 5: Solve for x
    x = 645,766,642.94/35,501.28
  6. Step 6: Final answer
    x = 18,189.95

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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.