Home / 37,478.56-51,718.08-20,711.92

Finding the Fourth Proportional to 37,478.56, 51,718.08 and 20,711.92

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Solution

The fourth proportional to 37,478.56, 51,718.08 and 20,711.92 is: 28,581.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,478.56 : 51,718.08 = 20,711.92 : x
  2. Step 2: Convert to fraction form
    37,478.56/51,718.08 = 20,711.92/x
  3. Step 3: Cross multiply
    37,478.56x = 51,718.08 × 20,711.92
  4. Step 4: Simplify right side
    37,478.56x = 1,071,180,735.51
  5. Step 5: Solve for x
    x = 1,071,180,735.51/37,478.56
  6. Step 6: Final answer
    x = 28,581.16

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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.