Home / 25,389.81-35,027.08-15,312.52

Finding the Fourth Proportional to 25,389.81, 35,027.08 and 15,312.52

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Solution

The fourth proportional to 25,389.81, 35,027.08 and 15,312.52 is: 21,124.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,389.81 : 35,027.08 = 15,312.52 : x
  2. Step 2: Convert to fraction form
    25,389.81/35,027.08 = 15,312.52/x
  3. Step 3: Cross multiply
    25,389.81x = 35,027.08 × 15,312.52
  4. Step 4: Simplify right side
    25,389.81x = 536,352,737.19
  5. Step 5: Solve for x
    x = 536,352,737.19/25,389.81
  6. Step 6: Final answer
    x = 21,124.72

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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.