Home / 28,345.77-42,487.56-11,697.21

Finding the Fourth Proportional to 28,345.77, 42,487.56 and 11,697.21

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Solution

The fourth proportional to 28,345.77, 42,487.56 and 11,697.21 is: 17,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.77 : 42,487.56 = 11,697.21 : x
  2. Step 2: Convert to fraction form
    28,345.77/42,487.56 = 11,697.21/x
  3. Step 3: Cross multiply
    28,345.77x = 42,487.56 × 11,697.21
  4. Step 4: Simplify right side
    28,345.77x = 496,985,911.71
  5. Step 5: Solve for x
    x = 496,985,911.71/28,345.77
  6. Step 6: Final answer
    x = 17,532.98

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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.