Home / 30,931.18-46,400.16-9,866.32

Finding the Fourth Proportional to 30,931.18, 46,400.16 and 9,866.32

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Solution

The fourth proportional to 30,931.18, 46,400.16 and 9,866.32 is: 14,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,931.18 : 46,400.16 = 9,866.32 : x
  2. Step 2: Convert to fraction form
    30,931.18/46,400.16 = 9,866.32/x
  3. Step 3: Cross multiply
    30,931.18x = 46,400.16 × 9,866.32
  4. Step 4: Simplify right side
    30,931.18x = 457,798,826.61
  5. Step 5: Solve for x
    x = 457,798,826.61/30,931.18
  6. Step 6: Final answer
    x = 14,800.56

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1.5x scale

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.