Home / 42,739.48-64,102.74-15,031

Finding the Fourth Proportional to 42,739.48, 64,102.74 and 15,031

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Solution

The fourth proportional to 42,739.48, 64,102.74 and 15,031 is: 22,544.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,739.48 : 64,102.74 = 15,031 : x
  2. Step 2: Convert to fraction form
    42,739.48/64,102.74 = 15,031/x
  3. Step 3: Cross multiply
    42,739.48x = 64,102.74 × 15,031
  4. Step 4: Simplify right side
    42,739.48x = 963,528,284.94
  5. Step 5: Solve for x
    x = 963,528,284.94/42,739.48
  6. Step 6: Final answer
    x = 22,544.22

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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.