Home / 31,136.40-46,402.59-30,140.16

Finding the Fourth Proportional to 31,136.40, 46,402.59 and 30,140.16

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Solution

The fourth proportional to 31,136.40, 46,402.59 and 30,140.16 is: 44,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,136.40 : 46,402.59 = 30,140.16 : x
  2. Step 2: Convert to fraction form
    31,136.40/46,402.59 = 30,140.16/x
  3. Step 3: Cross multiply
    31,136.40x = 46,402.59 × 30,140.16
  4. Step 4: Simplify right side
    31,136.40x = 1,398,581,487.01
  5. Step 5: Solve for x
    x = 1,398,581,487.01/31,136.40
  6. Step 6: Final answer
    x = 44,917.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.