Home / 25,638.48-35,328.58-18,913.45

Finding the Fourth Proportional to 25,638.48, 35,328.58 and 18,913.45

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Solution

The fourth proportional to 25,638.48, 35,328.58 and 18,913.45 is: 26,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,638.48 : 35,328.58 = 18,913.45 : x
  2. Step 2: Convert to fraction form
    25,638.48/35,328.58 = 18,913.45/x
  3. Step 3: Cross multiply
    25,638.48x = 35,328.58 × 18,913.45
  4. Step 4: Simplify right side
    25,638.48x = 668,185,331.40
  5. Step 5: Solve for x
    x = 668,185,331.40/25,638.48
  6. Step 6: Final answer
    x = 26,061.82

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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.