Home / 25,970.28-35,830.58-15,888.21

Finding the Fourth Proportional to 25,970.28, 35,830.58 and 15,888.21

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Solution

The fourth proportional to 25,970.28, 35,830.58 and 15,888.21 is: 21,920.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,970.28 : 35,830.58 = 15,888.21 : x
  2. Step 2: Convert to fraction form
    25,970.28/35,830.58 = 15,888.21/x
  3. Step 3: Cross multiply
    25,970.28x = 35,830.58 × 15,888.21
  4. Step 4: Simplify right side
    25,970.28x = 569,283,862.28
  5. Step 5: Solve for x
    x = 569,283,862.28/25,970.28
  6. Step 6: Final answer
    x = 21,920.59

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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.