Home / 51,247.28-70,721.34-28,585.68

Finding the Fourth Proportional to 51,247.28, 70,721.34 and 28,585.68

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Solution

The fourth proportional to 51,247.28, 70,721.34 and 28,585.68 is: 39,448.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,247.28 : 70,721.34 = 28,585.68 : x
  2. Step 2: Convert to fraction form
    51,247.28/70,721.34 = 28,585.68/x
  3. Step 3: Cross multiply
    51,247.28x = 70,721.34 × 28,585.68
  4. Step 4: Simplify right side
    51,247.28x = 2,021,617,594.41
  5. Step 5: Solve for x
    x = 2,021,617,594.41/51,247.28
  6. Step 6: Final answer
    x = 39,448.29

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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.