Home / 19,089.35-26,368.53-15,913.02

Finding the Fourth Proportional to 19,089.35, 26,368.53 and 15,913.02

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Solution

The fourth proportional to 19,089.35, 26,368.53 and 15,913.02 is: 21,981.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,089.35 : 26,368.53 = 15,913.02 : x
  2. Step 2: Convert to fraction form
    19,089.35/26,368.53 = 15,913.02/x
  3. Step 3: Cross multiply
    19,089.35x = 26,368.53 × 15,913.02
  4. Step 4: Simplify right side
    19,089.35x = 419,602,945.26
  5. Step 5: Solve for x
    x = 419,602,945.26/19,089.35
  6. Step 6: Final answer
    x = 21,981.00

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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.