Home / 28,496.81-42,743.93-19,140.77

Finding the Fourth Proportional to 28,496.81, 42,743.93 and 19,140.77

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Solution

The fourth proportional to 28,496.81, 42,743.93 and 19,140.77 is: 28,710.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496.81 : 42,743.93 = 19,140.77 : x
  2. Step 2: Convert to fraction form
    28,496.81/42,743.93 = 19,140.77/x
  3. Step 3: Cross multiply
    28,496.81x = 42,743.93 × 19,140.77
  4. Step 4: Simplify right side
    28,496.81x = 818,151,423.60
  5. Step 5: Solve for x
    x = 818,151,423.60/28,496.81
  6. Step 6: Final answer
    x = 28,710.29

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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.