Home / 42,937.14-64,416.62-13,355.20

Finding the Fourth Proportional to 42,937.14, 64,416.62 and 13,355.20

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Solution

The fourth proportional to 42,937.14, 64,416.62 and 13,355.20 is: 20,036.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,937.14 : 64,416.62 = 13,355.20 : x
  2. Step 2: Convert to fraction form
    42,937.14/64,416.62 = 13,355.20/x
  3. Step 3: Cross multiply
    42,937.14x = 64,416.62 × 13,355.20
  4. Step 4: Simplify right side
    42,937.14x = 860,296,843.42
  5. Step 5: Solve for x
    x = 860,296,843.42/42,937.14
  6. Step 6: Final answer
    x = 20,036.19

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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.