Home / 28,753.07-39,678.80-16,655.18

Finding the Fourth Proportional to 28,753.07, 39,678.80 and 16,655.18

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Solution

The fourth proportional to 28,753.07, 39,678.80 and 16,655.18 is: 22,983.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.07 : 39,678.80 = 16,655.18 : x
  2. Step 2: Convert to fraction form
    28,753.07/39,678.80 = 16,655.18/x
  3. Step 3: Cross multiply
    28,753.07x = 39,678.80 × 16,655.18
  4. Step 4: Simplify right side
    28,753.07x = 660,857,274.51
  5. Step 5: Solve for x
    x = 660,857,274.51/28,753.07
  6. Step 6: Final answer
    x = 22,983.89

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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.