Home / 25,423-35,075.34-15,347.62

Finding the Fourth Proportional to 25,423, 35,075.34 and 15,347.62

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Solution

The fourth proportional to 25,423, 35,075.34 and 15,347.62 is: 21,174.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,423 : 35,075.34 = 15,347.62 : x
  2. Step 2: Convert to fraction form
    25,423/35,075.34 = 15,347.62/x
  3. Step 3: Cross multiply
    25,423x = 35,075.34 × 15,347.62
  4. Step 4: Simplify right side
    25,423x = 538,322,989.69
  5. Step 5: Solve for x
    x = 538,322,989.69/25,423
  6. Step 6: Final answer
    x = 21,174.64

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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.