Home / 31,000.90-46,501.35-11,280.10

Finding the Fourth Proportional to 31,000.90, 46,501.35 and 11,280.10

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Solution

The fourth proportional to 31,000.90, 46,501.35 and 11,280.10 is: 16,920.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,000.90 : 46,501.35 = 11,280.10 : x
  2. Step 2: Convert to fraction form
    31,000.90/46,501.35 = 11,280.10/x
  3. Step 3: Cross multiply
    31,000.90x = 46,501.35 × 11,280.10
  4. Step 4: Simplify right side
    31,000.90x = 524,539,878.14
  5. Step 5: Solve for x
    x = 524,539,878.14/31,000.90
  6. Step 6: Final answer
    x = 16,920.15

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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.