Home / 27,478.53-37,920.78-14,903.28

Finding the Fourth Proportional to 27,478.53, 37,920.78 and 14,903.28

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Solution

The fourth proportional to 27,478.53, 37,920.78 and 14,903.28 is: 20,566.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.53 : 37,920.78 = 14,903.28 : x
  2. Step 2: Convert to fraction form
    27,478.53/37,920.78 = 14,903.28/x
  3. Step 3: Cross multiply
    27,478.53x = 37,920.78 × 14,903.28
  4. Step 4: Simplify right side
    27,478.53x = 565,144,002.16
  5. Step 5: Solve for x
    x = 565,144,002.16/27,478.53
  6. Step 6: Final answer
    x = 20,566.75

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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.