Home / 42,927.66-64,391.19-13,345.45

Finding the Fourth Proportional to 42,927.66, 64,391.19 and 13,345.45

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Solution

The fourth proportional to 42,927.66, 64,391.19 and 13,345.45 is: 20,018.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,927.66 : 64,391.19 = 13,345.45 : x
  2. Step 2: Convert to fraction form
    42,927.66/64,391.19 = 13,345.45/x
  3. Step 3: Cross multiply
    42,927.66x = 64,391.19 × 13,345.45
  4. Step 4: Simplify right side
    42,927.66x = 859,329,406.59
  5. Step 5: Solve for x
    x = 859,329,406.59/42,927.66
  6. Step 6: Final answer
    x = 20,018.08

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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.