Home / 30,981.24-46,445.73-13,437.86

Finding the Fourth Proportional to 30,981.24, 46,445.73 and 13,437.86

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Solution

The fourth proportional to 30,981.24, 46,445.73 and 13,437.86 is: 20,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.24 : 46,445.73 = 13,437.86 : x
  2. Step 2: Convert to fraction form
    30,981.24/46,445.73 = 13,437.86/x
  3. Step 3: Cross multiply
    30,981.24x = 46,445.73 × 13,437.86
  4. Step 4: Simplify right side
    30,981.24x = 624,130,985.11
  5. Step 5: Solve for x
    x = 624,130,985.11/30,981.24
  6. Step 6: Final answer
    x = 20,145.45

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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.