Home / 39,045.02-53,881.13-21,817.53

Finding the Fourth Proportional to 39,045.02, 53,881.13 and 21,817.53

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Solution

The fourth proportional to 39,045.02, 53,881.13 and 21,817.53 is: 30,107.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,045.02 : 53,881.13 = 21,817.53 : x
  2. Step 2: Convert to fraction form
    39,045.02/53,881.13 = 21,817.53/x
  3. Step 3: Cross multiply
    39,045.02x = 53,881.13 × 21,817.53
  4. Step 4: Simplify right side
    39,045.02x = 1,175,553,224.75
  5. Step 5: Solve for x
    x = 1,175,553,224.75/39,045.02
  6. Step 6: Final answer
    x = 30,107.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.