Home / 42,838.86-64,287.36-15,136.86

Finding the Fourth Proportional to 42,838.86, 64,287.36 and 15,136.86

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Solution

The fourth proportional to 42,838.86, 64,287.36 and 15,136.86 is: 22,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,838.86 : 64,287.36 = 15,136.86 : x
  2. Step 2: Convert to fraction form
    42,838.86/64,287.36 = 15,136.86/x
  3. Step 3: Cross multiply
    42,838.86x = 64,287.36 × 15,136.86
  4. Step 4: Simplify right side
    42,838.86x = 973,108,768.09
  5. Step 5: Solve for x
    x = 973,108,768.09/42,838.86
  6. Step 6: Final answer
    x = 22,715.56

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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.