Home / 28,312.85-39,072.48-15,566.57

Finding the Fourth Proportional to 28,312.85, 39,072.48 and 15,566.57

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Solution

The fourth proportional to 28,312.85, 39,072.48 and 15,566.57 is: 21,482.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,312.85 : 39,072.48 = 15,566.57 : x
  2. Step 2: Convert to fraction form
    28,312.85/39,072.48 = 15,566.57/x
  3. Step 3: Cross multiply
    28,312.85x = 39,072.48 × 15,566.57
  4. Step 4: Simplify right side
    28,312.85x = 608,224,299.63
  5. Step 5: Solve for x
    x = 608,224,299.63/28,312.85
  6. Step 6: Final answer
    x = 21,482.27

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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.