Home / 25,657.48-35,390.28-15,036.76

Finding the Fourth Proportional to 25,657.48, 35,390.28 and 15,036.76

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Solution

The fourth proportional to 25,657.48, 35,390.28 and 15,036.76 is: 20,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.48 : 35,390.28 = 15,036.76 : x
  2. Step 2: Convert to fraction form
    25,657.48/35,390.28 = 15,036.76/x
  3. Step 3: Cross multiply
    25,657.48x = 35,390.28 × 15,036.76
  4. Step 4: Simplify right side
    25,657.48x = 532,155,146.69
  5. Step 5: Solve for x
    x = 532,155,146.69/25,657.48
  6. Step 6: Final answer
    x = 20,740.74

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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.