Home / 19,285.47-28,926.05-13,085.31

Finding the Fourth Proportional to 19,285.47, 28,926.05 and 13,085.31

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Solution

The fourth proportional to 19,285.47, 28,926.05 and 13,085.31 is: 19,626.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,285.47 : 28,926.05 = 13,085.31 : x
  2. Step 2: Convert to fraction form
    19,285.47/28,926.05 = 13,085.31/x
  3. Step 3: Cross multiply
    19,285.47x = 28,926.05 × 13,085.31
  4. Step 4: Simplify right side
    19,285.47x = 378,506,265.90
  5. Step 5: Solve for x
    x = 378,506,265.90/19,285.47
  6. Step 6: Final answer
    x = 19,626.50

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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.