Home / 28,188.90-42,225.84-13,352.74

Finding the Fourth Proportional to 28,188.90, 42,225.84 and 13,352.74

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Solution

The fourth proportional to 28,188.90, 42,225.84 and 13,352.74 is: 20,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,188.90 : 42,225.84 = 13,352.74 : x
  2. Step 2: Convert to fraction form
    28,188.90/42,225.84 = 13,352.74/x
  3. Step 3: Cross multiply
    28,188.90x = 42,225.84 × 13,352.74
  4. Step 4: Simplify right side
    28,188.90x = 563,830,557.24
  5. Step 5: Solve for x
    x = 563,830,557.24/28,188.90
  6. Step 6: Final answer
    x = 20,001.86

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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.