Home / 28,358.51-42,536.48-10,587.79

Finding the Fourth Proportional to 28,358.51, 42,536.48 and 10,587.79

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Solution

The fourth proportional to 28,358.51, 42,536.48 and 10,587.79 is: 15,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,358.51 : 42,536.48 = 10,587.79 : x
  2. Step 2: Convert to fraction form
    28,358.51/42,536.48 = 10,587.79/x
  3. Step 3: Cross multiply
    28,358.51x = 42,536.48 × 10,587.79
  4. Step 4: Simplify right side
    28,358.51x = 450,367,158.30
  5. Step 5: Solve for x
    x = 450,367,158.30/28,358.51
  6. Step 6: Final answer
    x = 15,881.20

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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.