Home / 38,977.29-53,790.23-21,751.16

Finding the Fourth Proportional to 38,977.29, 53,790.23 and 21,751.16

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Solution

The fourth proportional to 38,977.29, 53,790.23 and 21,751.16 is: 30,017.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,977.29 : 53,790.23 = 21,751.16 : x
  2. Step 2: Convert to fraction form
    38,977.29/53,790.23 = 21,751.16/x
  3. Step 3: Cross multiply
    38,977.29x = 53,790.23 × 21,751.16
  4. Step 4: Simplify right side
    38,977.29x = 1,169,999,521.46
  5. Step 5: Solve for x
    x = 1,169,999,521.46/38,977.29
  6. Step 6: Final answer
    x = 30,017.47

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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.