Home / 37,079.28-51,168.72-20,312.16

Finding the Fourth Proportional to 37,079.28, 51,168.72 and 20,312.16

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Solution

The fourth proportional to 37,079.28, 51,168.72 and 20,312.16 is: 28,030.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,079.28 : 51,168.72 = 20,312.16 : x
  2. Step 2: Convert to fraction form
    37,079.28/51,168.72 = 20,312.16/x
  3. Step 3: Cross multiply
    37,079.28x = 51,168.72 × 20,312.16
  4. Step 4: Simplify right side
    37,079.28x = 1,039,347,227.64
  5. Step 5: Solve for x
    x = 1,039,347,227.64/37,079.28
  6. Step 6: Final answer
    x = 28,030.40

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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.