Home / 30,830.12-46,271.10-13,313.32

Finding the Fourth Proportional to 30,830.12, 46,271.10 and 13,313.32

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Solution

The fourth proportional to 30,830.12, 46,271.10 and 13,313.32 is: 19,981.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,830.12 : 46,271.10 = 13,313.32 : x
  2. Step 2: Convert to fraction form
    30,830.12/46,271.10 = 13,313.32/x
  3. Step 3: Cross multiply
    30,830.12x = 46,271.10 × 13,313.32
  4. Step 4: Simplify right side
    30,830.12x = 616,021,961.05
  5. Step 5: Solve for x
    x = 616,021,961.05/30,830.12
  6. Step 6: Final answer
    x = 19,981.17

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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.