Home / 28,159.90-38,860.10-16,222.93

Finding the Fourth Proportional to 28,159.90, 38,860.10 and 16,222.93

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Solution

The fourth proportional to 28,159.90, 38,860.10 and 16,222.93 is: 22,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.90 : 38,860.10 = 16,222.93 : x
  2. Step 2: Convert to fraction form
    28,159.90/38,860.10 = 16,222.93/x
  3. Step 3: Cross multiply
    28,159.90x = 38,860.10 × 16,222.93
  4. Step 4: Simplify right side
    28,159.90x = 630,424,600.98
  5. Step 5: Solve for x
    x = 630,424,600.98/28,159.90
  6. Step 6: Final answer
    x = 22,387.32

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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.