Home / 30,942.48-46,391-9,870.40

Finding the Fourth Proportional to 30,942.48, 46,391 and 9,870.40

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Solution

The fourth proportional to 30,942.48, 46,391 and 9,870.40 is: 14,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.48 : 46,391 = 9,870.40 : x
  2. Step 2: Convert to fraction form
    30,942.48/46,391 = 9,870.40/x
  3. Step 3: Cross multiply
    30,942.48x = 46,391 × 9,870.40
  4. Step 4: Simplify right side
    30,942.48x = 457,897,726.40
  5. Step 5: Solve for x
    x = 457,897,726.40/30,942.48
  6. Step 6: Final answer
    x = 14,798.35

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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.