Home / 19,437.47-26,821.77-10,939.40

Finding the Fourth Proportional to 19,437.47, 26,821.77 and 10,939.40

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Solution

The fourth proportional to 19,437.47, 26,821.77 and 10,939.40 is: 15,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,437.47 : 26,821.77 = 10,939.40 : x
  2. Step 2: Convert to fraction form
    19,437.47/26,821.77 = 10,939.40/x
  3. Step 3: Cross multiply
    19,437.47x = 26,821.77 × 10,939.40
  4. Step 4: Simplify right side
    19,437.47x = 293,413,936.63
  5. Step 5: Solve for x
    x = 293,413,936.63/19,437.47
  6. Step 6: Final answer
    x = 15,095.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.