Home / 30,931.86-46,397.64-10,155.36

Finding the Fourth Proportional to 30,931.86, 46,397.64 and 10,155.36

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Solution

The fourth proportional to 30,931.86, 46,397.64 and 10,155.36 is: 15,232.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.86 : 46,397.64 = 10,155.36 : x
  2. Step 2: Convert to fraction form
    30,931.86/46,397.64 = 10,155.36/x
  3. Step 3: Cross multiply
    30,931.86x = 46,397.64 × 10,155.36
  4. Step 4: Simplify right side
    30,931.86x = 471,184,737.35
  5. Step 5: Solve for x
    x = 471,184,737.35/30,931.86
  6. Step 6: Final answer
    x = 15,232.99

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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.