Home / 42,556.12-63,814.38-12,977.08

Finding the Fourth Proportional to 42,556.12, 63,814.38 and 12,977.08

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Solution

The fourth proportional to 42,556.12, 63,814.38 and 12,977.08 is: 19,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,556.12 : 63,814.38 = 12,977.08 : x
  2. Step 2: Convert to fraction form
    42,556.12/63,814.38 = 12,977.08/x
  3. Step 3: Cross multiply
    42,556.12x = 63,814.38 × 12,977.08
  4. Step 4: Simplify right side
    42,556.12x = 828,124,314.41
  5. Step 5: Solve for x
    x = 828,124,314.41/42,556.12
  6. Step 6: Final answer
    x = 19,459.58

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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.