Home / 39,702.30-54,710.19-28,339.74

Finding the Fourth Proportional to 39,702.30, 54,710.19 and 28,339.74

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Solution

The fourth proportional to 39,702.30, 54,710.19 and 28,339.74 is: 39,052.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702.30 : 54,710.19 = 28,339.74 : x
  2. Step 2: Convert to fraction form
    39,702.30/54,710.19 = 28,339.74/x
  3. Step 3: Cross multiply
    39,702.30x = 54,710.19 × 28,339.74
  4. Step 4: Simplify right side
    39,702.30x = 1,550,472,559.95
  5. Step 5: Solve for x
    x = 1,550,472,559.95/39,702.30
  6. Step 6: Final answer
    x = 39,052.46

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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.