Home / 28,158.86-42,252.63-13,367.93

Finding the Fourth Proportional to 28,158.86, 42,252.63 and 13,367.93

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Solution

The fourth proportional to 28,158.86, 42,252.63 and 13,367.93 is: 20,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.86 : 42,252.63 = 13,367.93 : x
  2. Step 2: Convert to fraction form
    28,158.86/42,252.63 = 13,367.93/x
  3. Step 3: Cross multiply
    28,158.86x = 42,252.63 × 13,367.93
  4. Step 4: Simplify right side
    28,158.86x = 564,829,988.89
  5. Step 5: Solve for x
    x = 564,829,988.89/28,158.86
  6. Step 6: Final answer
    x = 20,058.70

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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.