Home / 30,971.90-46,430.45-13,432.16

Finding the Fourth Proportional to 30,971.90, 46,430.45 and 13,432.16

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Solution

The fourth proportional to 30,971.90, 46,430.45 and 13,432.16 is: 20,136.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,971.90 : 46,430.45 = 13,432.16 : x
  2. Step 2: Convert to fraction form
    30,971.90/46,430.45 = 13,432.16/x
  3. Step 3: Cross multiply
    30,971.90x = 46,430.45 × 13,432.16
  4. Step 4: Simplify right side
    30,971.90x = 623,661,233.27
  5. Step 5: Solve for x
    x = 623,661,233.27/30,971.90
  6. Step 6: Final answer
    x = 20,136.36

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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.