Home / 21,433,601.04-31,988,426.30-19,365,030.72

Finding the Fourth Proportional to 21,433,601.04, 31,988,426.30 and 19,365,030.72

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Solution

The fourth proportional to 21,433,601.04, 31,988,426.30 and 19,365,030.72 is: 28,901,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,433,601.04 : 31,988,426.30 = 19,365,030.72 : x
  2. Step 2: Convert to fraction form
    21,433,601.04/31,988,426.30 = 19,365,030.72/x
  3. Step 3: Cross multiply
    21,433,601.04x = 31,988,426.30 × 19,365,030.72
  4. Step 4: Simplify right side
    21,433,601.04x = 619,456,857,887,130.75
  5. Step 5: Solve for x
    x = 619,456,857,887,130.75/21,433,601.04
  6. Step 6: Final answer
    x = 28,901,203.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.