Home / 21,038,913.18-29,038,533.60-12,339,888.24

Finding the Fourth Proportional to 21,038,913.18, 29,038,533.60 and 12,339,888.24

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Solution

The fourth proportional to 21,038,913.18, 29,038,533.60 and 12,339,888.24 is: 17,031,880.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,038,913.18 : 29,038,533.60 = 12,339,888.24 : x
  2. Step 2: Convert to fraction form
    21,038,913.18/29,038,533.60 = 12,339,888.24/x
  3. Step 3: Cross multiply
    21,038,913.18x = 29,038,533.60 × 12,339,888.24
  4. Step 4: Simplify right side
    21,038,913.18x = 358,332,259,277,484.88
  5. Step 5: Solve for x
    x = 358,332,259,277,484.88/21,038,913.18
  6. Step 6: Final answer
    x = 17,031,880.70

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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.