Home / 28,614.69-42,931.35-13,825.26

Finding the Fourth Proportional to 28,614.69, 42,931.35 and 13,825.26

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Solution

The fourth proportional to 28,614.69, 42,931.35 and 13,825.26 is: 20,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.69 : 42,931.35 = 13,825.26 : x
  2. Step 2: Convert to fraction form
    28,614.69/42,931.35 = 13,825.26/x
  3. Step 3: Cross multiply
    28,614.69x = 42,931.35 × 13,825.26
  4. Step 4: Simplify right side
    28,614.69x = 593,537,075.90
  5. Step 5: Solve for x
    x = 593,537,075.90/28,614.69
  6. Step 6: Final answer
    x = 20,742.39

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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.