Home / 28,777.16-39,711.88-16,030.31

Finding the Fourth Proportional to 28,777.16, 39,711.88 and 16,030.31

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Solution

The fourth proportional to 28,777.16, 39,711.88 and 16,030.31 is: 22,121.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,777.16 : 39,711.88 = 16,030.31 : x
  2. Step 2: Convert to fraction form
    28,777.16/39,711.88 = 16,030.31/x
  3. Step 3: Cross multiply
    28,777.16x = 39,711.88 × 16,030.31
  4. Step 4: Simplify right side
    28,777.16x = 636,593,666.93
  5. Step 5: Solve for x
    x = 636,593,666.93/28,777.16
  6. Step 6: Final answer
    x = 22,121.49

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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.