Home / 28,225.02-42,337.80-8,503.68

Finding the Fourth Proportional to 28,225.02, 42,337.80 and 8,503.68

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Solution

The fourth proportional to 28,225.02, 42,337.80 and 8,503.68 is: 12,755.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,225.02 : 42,337.80 = 8,503.68 : x
  2. Step 2: Convert to fraction form
    28,225.02/42,337.80 = 8,503.68/x
  3. Step 3: Cross multiply
    28,225.02x = 42,337.80 × 8,503.68
  4. Step 4: Simplify right side
    28,225.02x = 360,027,103.10
  5. Step 5: Solve for x
    x = 360,027,103.10/28,225.02
  6. Step 6: Final answer
    x = 12,755.60

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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.