Home / 51,038.15-70,435.83-28,382.21

Finding the Fourth Proportional to 51,038.15, 70,435.83 and 28,382.21

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Solution

The fourth proportional to 51,038.15, 70,435.83 and 28,382.21 is: 39,169.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,038.15 : 70,435.83 = 28,382.21 : x
  2. Step 2: Convert to fraction form
    51,038.15/70,435.83 = 28,382.21/x
  3. Step 3: Cross multiply
    51,038.15x = 70,435.83 × 28,382.21
  4. Step 4: Simplify right side
    51,038.15x = 1,999,124,166.41
  5. Step 5: Solve for x
    x = 1,999,124,166.41/51,038.15
  6. Step 6: Final answer
    x = 39,169.22

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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.