Home / 39,110.23-53,971.88-21,205.18

Finding the Fourth Proportional to 39,110.23, 53,971.88 and 21,205.18

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Solution

The fourth proportional to 39,110.23, 53,971.88 and 21,205.18 is: 29,263.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,110.23 : 53,971.88 = 21,205.18 : x
  2. Step 2: Convert to fraction form
    39,110.23/53,971.88 = 21,205.18/x
  3. Step 3: Cross multiply
    39,110.23x = 53,971.88 × 21,205.18
  4. Step 4: Simplify right side
    39,110.23x = 1,144,483,430.34
  5. Step 5: Solve for x
    x = 1,144,483,430.34/39,110.23
  6. Step 6: Final answer
    x = 29,263.02

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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.