Home / 27,378.38-37,782.18-14,803.12

Finding the Fourth Proportional to 27,378.38, 37,782.18 and 14,803.12

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Solution

The fourth proportional to 27,378.38, 37,782.18 and 14,803.12 is: 20,428.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.38 : 37,782.18 = 14,803.12 : x
  2. Step 2: Convert to fraction form
    27,378.38/37,782.18 = 14,803.12/x
  3. Step 3: Cross multiply
    27,378.38x = 37,782.18 × 14,803.12
  4. Step 4: Simplify right side
    27,378.38x = 559,294,144.40
  5. Step 5: Solve for x
    x = 559,294,144.40/27,378.38
  6. Step 6: Final answer
    x = 20,428.31

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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.