Home / 28,320.03-42,466.14-11,688.30

Finding the Fourth Proportional to 28,320.03, 42,466.14 and 11,688.30

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Solution

The fourth proportional to 28,320.03, 42,466.14 and 11,688.30 is: 17,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.03 : 42,466.14 = 11,688.30 : x
  2. Step 2: Convert to fraction form
    28,320.03/42,466.14 = 11,688.30/x
  3. Step 3: Cross multiply
    28,320.03x = 42,466.14 × 11,688.30
  4. Step 4: Simplify right side
    28,320.03x = 496,356,984.16
  5. Step 5: Solve for x
    x = 496,356,984.16/28,320.03
  6. Step 6: Final answer
    x = 17,526.71

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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.