Home / 30,866.81-42,595.88-17,438.04

Finding the Fourth Proportional to 30,866.81, 42,595.88 and 17,438.04

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Solution

The fourth proportional to 30,866.81, 42,595.88 and 17,438.04 is: 24,064.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,866.81 : 42,595.88 = 17,438.04 : x
  2. Step 2: Convert to fraction form
    30,866.81/42,595.88 = 17,438.04/x
  3. Step 3: Cross multiply
    30,866.81x = 42,595.88 × 17,438.04
  4. Step 4: Simplify right side
    30,866.81x = 742,788,572.09
  5. Step 5: Solve for x
    x = 742,788,572.09/30,866.81
  6. Step 6: Final answer
    x = 24,064.32

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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.