Home / 28,392.40-39,178.65-16,459.48

Finding the Fourth Proportional to 28,392.40, 39,178.65 and 16,459.48

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Solution

The fourth proportional to 28,392.40, 39,178.65 and 16,459.48 is: 22,712.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,392.40 : 39,178.65 = 16,459.48 : x
  2. Step 2: Convert to fraction form
    28,392.40/39,178.65 = 16,459.48/x
  3. Step 3: Cross multiply
    28,392.40x = 39,178.65 × 16,459.48
  4. Step 4: Simplify right side
    28,392.40x = 644,860,206.10
  5. Step 5: Solve for x
    x = 644,860,206.10/28,392.40
  6. Step 6: Final answer
    x = 22,712.42

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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.