Home / 28,323.60-42,509.70-12,552.90

Finding the Fourth Proportional to 28,323.60, 42,509.70 and 12,552.90

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Solution

The fourth proportional to 28,323.60, 42,509.70 and 12,552.90 is: 18,840.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,323.60 : 42,509.70 = 12,552.90 : x
  2. Step 2: Convert to fraction form
    28,323.60/42,509.70 = 12,552.90/x
  3. Step 3: Cross multiply
    28,323.60x = 42,509.70 × 12,552.90
  4. Step 4: Simplify right side
    28,323.60x = 533,620,013.13
  5. Step 5: Solve for x
    x = 533,620,013.13/28,323.60
  6. Step 6: Final answer
    x = 18,840.12

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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.