Home / 28,827.90-43,237.80-9,108.45

Finding the Fourth Proportional to 28,827.90, 43,237.80 and 9,108.45

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Solution

The fourth proportional to 28,827.90, 43,237.80 and 9,108.45 is: 13,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,827.90 : 43,237.80 = 9,108.45 : x
  2. Step 2: Convert to fraction form
    28,827.90/43,237.80 = 9,108.45/x
  3. Step 3: Cross multiply
    28,827.90x = 43,237.80 × 9,108.45
  4. Step 4: Simplify right side
    28,827.90x = 393,829,339.41
  5. Step 5: Solve for x
    x = 393,829,339.41/28,827.90
  6. Step 6: Final answer
    x = 13,661.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.