Home / 15,681.60-23,522.40-13,089.60

Finding the Fourth Proportional to 15,681.60, 23,522.40 and 13,089.60

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Solution

The fourth proportional to 15,681.60, 23,522.40 and 13,089.60 is: 19,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681.60 : 23,522.40 = 13,089.60 : x
  2. Step 2: Convert to fraction form
    15,681.60/23,522.40 = 13,089.60/x
  3. Step 3: Cross multiply
    15,681.60x = 23,522.40 × 13,089.60
  4. Step 4: Simplify right side
    15,681.60x = 307,898,807.04
  5. Step 5: Solve for x
    x = 307,898,807.04/15,681.60
  6. Step 6: Final answer
    x = 19,634.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.