Home / 28,470.34-42,710.37-12,681.01

Finding the Fourth Proportional to 28,470.34, 42,710.37 and 12,681.01

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Solution

The fourth proportional to 28,470.34, 42,710.37 and 12,681.01 is: 19,023.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.34 : 42,710.37 = 12,681.01 : x
  2. Step 2: Convert to fraction form
    28,470.34/42,710.37 = 12,681.01/x
  3. Step 3: Cross multiply
    28,470.34x = 42,710.37 × 12,681.01
  4. Step 4: Simplify right side
    28,470.34x = 541,610,629.07
  5. Step 5: Solve for x
    x = 541,610,629.07/28,470.34
  6. Step 6: Final answer
    x = 19,023.68

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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.