Home / 52,431.90-72,354.63-28,557.15

Finding the Fourth Proportional to 52,431.90, 72,354.63 and 28,557.15

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Solution

The fourth proportional to 52,431.90, 72,354.63 and 28,557.15 is: 39,408.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,431.90 : 72,354.63 = 28,557.15 : x
  2. Step 2: Convert to fraction form
    52,431.90/72,354.63 = 28,557.15/x
  3. Step 3: Cross multiply
    52,431.90x = 72,354.63 × 28,557.15
  4. Step 4: Simplify right side
    52,431.90x = 2,066,242,022.10
  5. Step 5: Solve for x
    x = 2,066,242,022.10/52,431.90
  6. Step 6: Final answer
    x = 39,408.11

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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.