Home / 39,462.51-54,457.35-21,557.61

Finding the Fourth Proportional to 39,462.51, 54,457.35 and 21,557.61

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Solution

The fourth proportional to 39,462.51, 54,457.35 and 21,557.61 is: 29,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,462.51 : 54,457.35 = 21,557.61 : x
  2. Step 2: Convert to fraction form
    39,462.51/54,457.35 = 21,557.61/x
  3. Step 3: Cross multiply
    39,462.51x = 54,457.35 × 21,557.61
  4. Step 4: Simplify right side
    39,462.51x = 1,173,970,312.93
  5. Step 5: Solve for x
    x = 1,173,970,312.93/39,462.51
  6. Step 6: Final answer
    x = 29,749.00

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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.