Home / 28,646.89-42,970.22-8,925.47

Finding the Fourth Proportional to 28,646.89, 42,970.22 and 8,925.47

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Solution

The fourth proportional to 28,646.89, 42,970.22 and 8,925.47 is: 13,388.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,646.89 : 42,970.22 = 8,925.47 : x
  2. Step 2: Convert to fraction form
    28,646.89/42,970.22 = 8,925.47/x
  3. Step 3: Cross multiply
    28,646.89x = 42,970.22 × 8,925.47
  4. Step 4: Simplify right side
    28,646.89x = 383,529,248.88
  5. Step 5: Solve for x
    x = 383,529,248.88/28,646.89
  6. Step 6: Final answer
    x = 13,388.16

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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.