Home / 27,478.71-37,921.37-15,541.74

Finding the Fourth Proportional to 27,478.71, 37,921.37 and 15,541.74

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Solution

The fourth proportional to 27,478.71, 37,921.37 and 15,541.74 is: 21,448.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,478.71 : 37,921.37 = 15,541.74 : x
  2. Step 2: Convert to fraction form
    27,478.71/37,921.37 = 15,541.74/x
  3. Step 3: Cross multiply
    27,478.71x = 37,921.37 × 15,541.74
  4. Step 4: Simplify right side
    27,478.71x = 589,363,995.28
  5. Step 5: Solve for x
    x = 589,363,995.28/27,478.71
  6. Step 6: Final answer
    x = 21,448.02

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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.