Home / 30,715.24-42,386.58-17,977.18

Finding the Fourth Proportional to 30,715.24, 42,386.58 and 17,977.18

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Solution

The fourth proportional to 30,715.24, 42,386.58 and 17,977.18 is: 24,808.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.24 : 42,386.58 = 17,977.18 : x
  2. Step 2: Convert to fraction form
    30,715.24/42,386.58 = 17,977.18/x
  3. Step 3: Cross multiply
    30,715.24x = 42,386.58 × 17,977.18
  4. Step 4: Simplify right side
    30,715.24x = 761,991,178.24
  5. Step 5: Solve for x
    x = 761,991,178.24/30,715.24
  6. Step 6: Final answer
    x = 24,808.24

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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.