Home / 30,688.53-42,345.21-17,258.98

Finding the Fourth Proportional to 30,688.53, 42,345.21 and 17,258.98

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Solution

The fourth proportional to 30,688.53, 42,345.21 and 17,258.98 is: 23,814.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,688.53 : 42,345.21 = 17,258.98 : x
  2. Step 2: Convert to fraction form
    30,688.53/42,345.21 = 17,258.98/x
  3. Step 3: Cross multiply
    30,688.53x = 42,345.21 × 17,258.98
  4. Step 4: Simplify right side
    30,688.53x = 730,835,132.49
  5. Step 5: Solve for x
    x = 730,835,132.49/30,688.53
  6. Step 6: Final answer
    x = 23,814.60

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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.