Home / 28,314.21-39,074.06-15,567.94

Finding the Fourth Proportional to 28,314.21, 39,074.06 and 15,567.94

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Solution

The fourth proportional to 28,314.21, 39,074.06 and 15,567.94 is: 21,484.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.21 : 39,074.06 = 15,567.94 : x
  2. Step 2: Convert to fraction form
    28,314.21/39,074.06 = 15,567.94/x
  3. Step 3: Cross multiply
    28,314.21x = 39,074.06 × 15,567.94
  4. Step 4: Simplify right side
    28,314.21x = 608,302,621.64
  5. Step 5: Solve for x
    x = 608,302,621.64/28,314.21
  6. Step 6: Final answer
    x = 21,484.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.