Home / 42,803.26-64,230.28-19,429.36

Finding the Fourth Proportional to 42,803.26, 64,230.28 and 19,429.36

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Solution

The fourth proportional to 42,803.26, 64,230.28 and 19,429.36 is: 29,155.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,803.26 : 64,230.28 = 19,429.36 : x
  2. Step 2: Convert to fraction form
    42,803.26/64,230.28 = 19,429.36/x
  3. Step 3: Cross multiply
    42,803.26x = 64,230.28 × 19,429.36
  4. Step 4: Simplify right side
    42,803.26x = 1,247,953,233.02
  5. Step 5: Solve for x
    x = 1,247,953,233.02/42,803.26
  6. Step 6: Final answer
    x = 29,155.57

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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.