Home / 30,981.37-42,753.57-17,368.51

Finding the Fourth Proportional to 30,981.37, 42,753.57 and 17,368.51

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Solution

The fourth proportional to 30,981.37, 42,753.57 and 17,368.51 is: 23,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,981.37 : 42,753.57 = 17,368.51 : x
  2. Step 2: Convert to fraction form
    30,981.37/42,753.57 = 17,368.51/x
  3. Step 3: Cross multiply
    30,981.37x = 42,753.57 × 17,368.51
  4. Step 4: Simplify right side
    30,981.37x = 742,565,808.08
  5. Step 5: Solve for x
    x = 742,565,808.08/30,981.37
  6. Step 6: Final answer
    x = 23,968.14

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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.