Home / 24,970.79-34,459.81-13,640.45

Finding the Fourth Proportional to 24,970.79, 34,459.81 and 13,640.45

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Solution

The fourth proportional to 24,970.79, 34,459.81 and 13,640.45 is: 18,823.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,970.79 : 34,459.81 = 13,640.45 : x
  2. Step 2: Convert to fraction form
    24,970.79/34,459.81 = 13,640.45/x
  3. Step 3: Cross multiply
    24,970.79x = 34,459.81 × 13,640.45
  4. Step 4: Simplify right side
    24,970.79x = 470,047,143.02
  5. Step 5: Solve for x
    x = 470,047,143.02/24,970.79
  6. Step 6: Final answer
    x = 18,823.88

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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.