Home / 28,416.34-39,214.82-15,669.98

Finding the Fourth Proportional to 28,416.34, 39,214.82 and 15,669.98

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Solution

The fourth proportional to 28,416.34, 39,214.82 and 15,669.98 is: 21,624.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,416.34 : 39,214.82 = 15,669.98 : x
  2. Step 2: Convert to fraction form
    28,416.34/39,214.82 = 15,669.98/x
  3. Step 3: Cross multiply
    28,416.34x = 39,214.82 × 15,669.98
  4. Step 4: Simplify right side
    28,416.34x = 614,495,445.10
  5. Step 5: Solve for x
    x = 614,495,445.10/28,416.34
  6. Step 6: Final answer
    x = 21,624.72

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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.