Home / 46,688.20-70,021.62-13,408

Finding the Fourth Proportional to 46,688.20, 70,021.62 and 13,408

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Solution

The fourth proportional to 46,688.20, 70,021.62 and 13,408 is: 20,108.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,688.20 : 70,021.62 = 13,408 : x
  2. Step 2: Convert to fraction form
    46,688.20/70,021.62 = 13,408/x
  3. Step 3: Cross multiply
    46,688.20x = 70,021.62 × 13,408
  4. Step 4: Simplify right side
    46,688.20x = 938,849,880.96
  5. Step 5: Solve for x
    x = 938,849,880.96/46,688.20
  6. Step 6: Final answer
    x = 20,108.93

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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.