Home / 19,001.25-28,489.59-10,242.45

Finding the Fourth Proportional to 19,001.25, 28,489.59 and 10,242.45

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Solution

The fourth proportional to 19,001.25, 28,489.59 and 10,242.45 is: 15,357.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,001.25 : 28,489.59 = 10,242.45 : x
  2. Step 2: Convert to fraction form
    19,001.25/28,489.59 = 10,242.45/x
  3. Step 3: Cross multiply
    19,001.25x = 28,489.59 × 10,242.45
  4. Step 4: Simplify right side
    19,001.25x = 291,803,201.10
  5. Step 5: Solve for x
    x = 291,803,201.10/19,001.25
  6. Step 6: Final answer
    x = 15,357.05

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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.