Home / 25,947.57-35,807.71-15,342.45

Finding the Fourth Proportional to 25,947.57, 35,807.71 and 15,342.45

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Solution

The fourth proportional to 25,947.57, 35,807.71 and 15,342.45 is: 21,172.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,947.57 : 35,807.71 = 15,342.45 : x
  2. Step 2: Convert to fraction form
    25,947.57/35,807.71 = 15,342.45/x
  3. Step 3: Cross multiply
    25,947.57x = 35,807.71 × 15,342.45
  4. Step 4: Simplify right side
    25,947.57x = 549,378,000.29
  5. Step 5: Solve for x
    x = 549,378,000.29/25,947.57
  6. Step 6: Final answer
    x = 21,172.62

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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.