Home / 27,822.49-38,394.91-15,075.72

Finding the Fourth Proportional to 27,822.49, 38,394.91 and 15,075.72

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Solution

The fourth proportional to 27,822.49, 38,394.91 and 15,075.72 is: 20,804.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,822.49 : 38,394.91 = 15,075.72 : x
  2. Step 2: Convert to fraction form
    27,822.49/38,394.91 = 15,075.72/x
  3. Step 3: Cross multiply
    27,822.49x = 38,394.91 × 15,075.72
  4. Step 4: Simplify right side
    27,822.49x = 578,830,931.43
  5. Step 5: Solve for x
    x = 578,830,931.43/27,822.49
  6. Step 6: Final answer
    x = 20,804.43

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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.