Home / 30,823.55-42,534.07-18,885.26

Finding the Fourth Proportional to 30,823.55, 42,534.07 and 18,885.26

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Solution

The fourth proportional to 30,823.55, 42,534.07 and 18,885.26 is: 26,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,823.55 : 42,534.07 = 18,885.26 : x
  2. Step 2: Convert to fraction form
    30,823.55/42,534.07 = 18,885.26/x
  3. Step 3: Cross multiply
    30,823.55x = 42,534.07 × 18,885.26
  4. Step 4: Simplify right side
    30,823.55x = 803,266,970.81
  5. Step 5: Solve for x
    x = 803,266,970.81/30,823.55
  6. Step 6: Final answer
    x = 26,060.17

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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.