Home / 25,075.79-34,608.14-15,518.76

Finding the Fourth Proportional to 25,075.79, 34,608.14 and 15,518.76

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Solution

The fourth proportional to 25,075.79, 34,608.14 and 15,518.76 is: 21,418.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,075.79 : 34,608.14 = 15,518.76 : x
  2. Step 2: Convert to fraction form
    25,075.79/34,608.14 = 15,518.76/x
  3. Step 3: Cross multiply
    25,075.79x = 34,608.14 × 15,518.76
  4. Step 4: Simplify right side
    25,075.79x = 537,075,418.71
  5. Step 5: Solve for x
    x = 537,075,418.71/25,075.79
  6. Step 6: Final answer
    x = 21,418.09

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Half scale
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Double scale
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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.