Home / 39,461.93-54,457.49-21,557.15

Finding the Fourth Proportional to 39,461.93, 54,457.49 and 21,557.15

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Solution

The fourth proportional to 39,461.93, 54,457.49 and 21,557.15 is: 29,748.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,461.93 : 54,457.49 = 21,557.15 : x
  2. Step 2: Convert to fraction form
    39,461.93/54,457.49 = 21,557.15/x
  3. Step 3: Cross multiply
    39,461.93x = 54,457.49 × 21,557.15
  4. Step 4: Simplify right side
    39,461.93x = 1,173,948,172.77
  5. Step 5: Solve for x
    x = 1,173,948,172.77/39,461.93
  6. Step 6: Final answer
    x = 29,748.88

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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.