Home / 25,312.78-34,931.75-13,827.85

Finding the Fourth Proportional to 25,312.78, 34,931.75 and 13,827.85

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Solution

The fourth proportional to 25,312.78, 34,931.75 and 13,827.85 is: 19,082.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,312.78 : 34,931.75 = 13,827.85 : x
  2. Step 2: Convert to fraction form
    25,312.78/34,931.75 = 13,827.85/x
  3. Step 3: Cross multiply
    25,312.78x = 34,931.75 × 13,827.85
  4. Step 4: Simplify right side
    25,312.78x = 483,030,999.24
  5. Step 5: Solve for x
    x = 483,030,999.24/25,312.78
  6. Step 6: Final answer
    x = 19,082.50

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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.