Home / 28,130.50-42,196.02-12,332.26

Finding the Fourth Proportional to 28,130.50, 42,196.02 and 12,332.26

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Solution

The fourth proportional to 28,130.50, 42,196.02 and 12,332.26 is: 18,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130.50 : 42,196.02 = 12,332.26 : x
  2. Step 2: Convert to fraction form
    28,130.50/42,196.02 = 12,332.26/x
  3. Step 3: Cross multiply
    28,130.50x = 42,196.02 × 12,332.26
  4. Step 4: Simplify right side
    28,130.50x = 520,372,289.61
  5. Step 5: Solve for x
    x = 520,372,289.61/28,130.50
  6. Step 6: Final answer
    x = 18,498.51

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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.