Home / 28,043.10-42,085.50-13,256.55

Finding the Fourth Proportional to 28,043.10, 42,085.50 and 13,256.55

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Solution

The fourth proportional to 28,043.10, 42,085.50 and 13,256.55 is: 19,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,043.10 : 42,085.50 = 13,256.55 : x
  2. Step 2: Convert to fraction form
    28,043.10/42,085.50 = 13,256.55/x
  3. Step 3: Cross multiply
    28,043.10x = 42,085.50 × 13,256.55
  4. Step 4: Simplify right side
    28,043.10x = 557,908,535.03
  5. Step 5: Solve for x
    x = 557,908,535.03/28,043.10
  6. Step 6: Final answer
    x = 19,894.68

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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.