Home / 51,031.62-70,419.65-28,369.24

Finding the Fourth Proportional to 51,031.62, 70,419.65 and 28,369.24

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Solution

The fourth proportional to 51,031.62, 70,419.65 and 28,369.24 is: 39,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,031.62 : 70,419.65 = 28,369.24 : x
  2. Step 2: Convert to fraction form
    51,031.62/70,419.65 = 28,369.24/x
  3. Step 3: Cross multiply
    51,031.62x = 70,419.65 × 28,369.24
  4. Step 4: Simplify right side
    51,031.62x = 1,997,751,774.01
  5. Step 5: Solve for x
    x = 1,997,751,774.01/51,031.62
  6. Step 6: Final answer
    x = 39,147.33

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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.