Home / 28,131.18-42,159.51-14,955.18

Finding the Fourth Proportional to 28,131.18, 42,159.51 and 14,955.18

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Solution

The fourth proportional to 28,131.18, 42,159.51 and 14,955.18 is: 22,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.18 : 42,159.51 = 14,955.18 : x
  2. Step 2: Convert to fraction form
    28,131.18/42,159.51 = 14,955.18/x
  3. Step 3: Cross multiply
    28,131.18x = 42,159.51 × 14,955.18
  4. Step 4: Simplify right side
    28,131.18x = 630,503,060.76
  5. Step 5: Solve for x
    x = 630,503,060.76/28,131.18
  6. Step 6: Final answer
    x = 22,412.96

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1.5x scale

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.