Home / 27,478.28-37,920.02-15,541.36

Finding the Fourth Proportional to 27,478.28, 37,920.02 and 15,541.36

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Solution

The fourth proportional to 27,478.28, 37,920.02 and 15,541.36 is: 21,447.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.28 : 37,920.02 = 15,541.36 : x
  2. Step 2: Convert to fraction form
    27,478.28/37,920.02 = 15,541.36/x
  3. Step 3: Cross multiply
    27,478.28x = 37,920.02 × 15,541.36
  4. Step 4: Simplify right side
    27,478.28x = 589,328,492.43
  5. Step 5: Solve for x
    x = 589,328,492.43/27,478.28
  6. Step 6: Final answer
    x = 21,447.07

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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.